||HONDA 88-91 CIVIC/CRX|| OBD1 ECU Bluetooth Datalogger HC05 for under $6! (P28, P05, P06, P72, P75)

This video covers:
▶ What you'll need to purchase to get Bluetooth datalogging
▶ How to hook up a FTDI cable to the HC05 for programming
▶ How to set HC05 into programming mode (AT mode)
▶ How to program Bluetooth module using Honda Tuning Suite
▶ How to setup your COM port
▶ How to setup your datalogging able to Honda Tuning Suite
▶ How to add Bluetooth device and pair to your laptop
▶ How to determine COM port for your Bluetooth datalogger
▶ How to wire HC05 to your OBD1 ECU
▶ How to setup datalogging on Honda Tuning Suite
In this video, I go through the steps in installing/setting up a Bluetooth datalogging HC05 chip for the OBD1 ECU.
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#EFCIVIC #CRX #HONDA #OEM #carparts #ED7 #EF9 #SavetheEFs #Hatchback #obd1ecu #chippingecu #P28 #JDM #DIY #CarRepair #AutoRepair #maxpeedingrods #HowTo #DIYCarRepair #Rebuild #EFCIVIC #CarMods #HondaCivic #VintageCIVIC #Civic #D16Y8 #howto #carmod #CivicSi #VintageCar #CarRepair #rebuild #cars #carmods #hondatech #honda #edcivic #engineerbuild #budgetbuild #projectcar #diyproject #diymechanic #diycarproject #carrestoration #restoration #civic90s #Civic4thgen #vintagehonda #oldskoolhonda #carrestoration #restoration #1990civic #instagram #hondalover #subscribe #youtuber #1990civic #rare #JDM #EDM #si #Acura #Integra #Delsol #EG #soldering #aem #wideband #tuning #bosch #o2 #oxygensensor #datalogging #dataloggingcable #hondatuningsuite #hondatuning #HC05 #bluetooth

[@dasboseimbusch7079]

1:40 RX is the receive pin, TX is the transmit pin. RX always goes on TX and vice versa. ;-)

[@Oscar_delta13]

Yup. Gets real complicated when you have multiple levels of TTL. To set yourself up for success if you ever want to play with arduinos: Think of them only as SIGNAL NAMES. NOT DIRECTION OF "FLOW"

[@Oscar_delta13]

Tx is whats transferring out of the ecu. Pin 2 on board. You need the other side to catch the signal on recieve. The software is requesting these packets, to send them to the computer it needs to send the signal to RX for received. Dont think of them as flows, just signal names.

[@HondaTuningSuite]

Nice tutorial my dude!

[@dasboseimbusch7079]

Is it also possible to use the Smart Port Scan with the HC-05/HC-06 ?

[@dasboseimbusch7079]

I just tried it. It works. Good job HTS ;-)

[@ninjasalsa3152]

Such a good video. Thanks for posting and explaining all of this i couldnt find detailed info on this. Subbed

[@BudgetGears]

Thanks 😊 appreciate the sub 🙏

[@breehernandez9551]

I'm using same setup it give me hard time but I got it done

[@JohnDoe-gb4kw]

My HC06 has no button??? Anyone know how to put it in AT mode???

[@rkcautoparts5394]

Hi what must buy hc05 slave or master? What is the difference if hc06 there is button

[@ericpommer8769]

I followed all the instructions from this and the previous video and despite this, my hc05 will only stay connected for about two seconds, then shut off. Any advice?

[@jayloufernandez24]

What do you call that cable that connect HC05 and Laptop? Thanks! Great video! :)

[@BudgetGears]

FTDI cable.You can also datalog directly with the FTDI cable as well.

[@ImBenny]

Can't pass step 2. I have two different cables, none of them work. One says Failed to enter AT mode, the other one just does nothing. What I did wrong? It recognizes the COM port automatically but can't connect to it. Thank you for your help! Edit: I got it fixed by change the RX and TX. My bad.

[@Kdiset]

Hello, I have the same problem as you, how did you do it? mine can connect but can't read. please help me 😑

[@ImBenny]

@@Kdiset which bluetooth module do you have?

[@Kdiset]

@@ImBenny HC-05 bluetooth and TTL cable

[@carlosbertoldi5603]

@@Kdiset change the RX and TX and black conector usb no blue 3.0

[@malice930]

Signal flow I'm guessing. If one side is transmitting(tx) then the other side is receiving (rx).

[@BudgetGears]

Thats kinda what I was thinking too. But didn't make much sense with how the ecu datalog pinout is. Unless the actual pinout is opposite of what the wiring is on the forums. I guess as long as it works. 😁

[@MixaL1s6804]

Is HTS the only software to view data in? Is there any android/ios app that uses such a bluetooth dongle to read data? I basically want to use a phone/tablet to view realtime data, i know of hondash but im tuned in chrome gold and they dont support it.

[@BudgetGears]

@@MixaL1s6804 You can use tunerview. You have to pay for it, but you can view the data on your phone. The only software on phone that I know of is hondash and tunerview.

[@timwalther]

Thanks for the tutorial, will give this a try! If you attach the HC-05 to the inside of the ECU, will the bluetooth signal still make it outside once you screw the ECU lid back on?

[@BudgetGears]

Yes, I've tuned with the ECU lid on only and works fine. I'm pretty sure almost everyone places it inside the ECU.

[@timwalther]

@@BudgetGears Thanks for getting back to me, appreciate it!

[@eddyvlogs8562]

Hi i bought the hc05 and i first started and tried to put on at mode red and blue light came on and started blinking slow. as i saw on video u only had a red light on. but i also had a blue one. is that okay? and also it could detect the com port. but as soon as i press connect it says couldnt go on at mode. but it was already blinking slow. whats wrong?

[@eddyvlogs8562]

or do i need to buy another hc05? do u have a site where u bought the hc05 at? and what brand or manufacturer made it

[@jamoneburnett7428]

Can you upload that 3d print?

[@josuecrx]

Hello, I do all the process but in hts, the datalog button is disabled. :(

[@BudgetGears]

I wouldn't now what's wrong. You're better off asking the guys at HTS because it's their software. I know there's been many versions since this video so they could have changed some of the coding.

[@luckyluke97223]

Hi, I have a P28 with my stock D16Z6, I flashed a HC05 and HC06, but when connected to Hondash it says can't read from ECU or can't connect to the ECU.. I will try with another app..

[@fabrrr]

Did it worked for you?

[@luckyluke97223]

@@fabrrr Not gone further.. But the stock P28 ECU needs a resistor and a soldering to get data transfer.. I will do it when I will have some time...

[@rorenstv9051]

can you program it wirelessly, like a normal ecu tuning ? or is there any delay on the readings? im planning to learn how to tune my own car :) (newbie)

[@BudgetGears]

No, this is a datalogger. It's exactly what the name is, it only logs data. In other words, it only reads data and doesn't write it. For you to write data, you need an emulator. The readings you obtain from the datalogger is used to make adjustments to your map. You then write the map in real time using an emulator or not in real time by burning a chip and swapping out the old chip with the new.

[@rorenstv9051]

@@BudgetGears Thank you very much for answering my question it is a very big help for me since im just starting to learn how to tune :) thanks

[@YawasopJudah]

Cool video......I used the instructions in the video and it worked great. Awhile later my ECU needed repair, after getting it back from being repaired I can't get it to work again. The Bluetooth seems to work but my problem is HTS can't open com port 9 and I can't datalog. Should I try to reprogram the HC-05? Any suggestions?

[@BudgetGears]

Not really sure. I'd suggest trying to reset it and then program again and make sure you select the com port that is outgoing.

[@Muzamil.Rind1]

@@BudgetGears can you also edit tune with this data logger?

[@BudgetGears]

@@Muzamil.Rind1 No, it's called a datalogger. It's in the name. It logs data. If you're looking to tune, you'll need a programmer. Either tune by burning chips, which is a eeprom programmer or by using an emulator, which would be the many RTP's on the market.

[@jaredbrown3669]

Great video! Any chance this can work on a phone app? Trying to do a fuel economy VX with active MPG displayed on my phone

[@BudgetGears]

Yes, I've successfully used it on Hondash, but haven't tried TunerView yet because it required the purchase of the protocol and I didn't want to or need to spend the money for it. But others have used it on TunerView and had no problems. So yes, you can use it on phone apps.

[@spirospagiatis8077]

I do all the steps like the video but when i do the restart module it doesn't do it and not flashing tge light

[@watchitwithme4016]

Did you hold the button before you plugged it in happened to me once

[@shahul11p98]

I tried this but hts sayscant conect to ecu check debug logs.. i am in the right com (outgoing) before that it said maximum number of series reached

[@BudgetGears]

Sounds like you're trying to connect using emulator. This tutorial is for datalogging. If you're having issues with your emulator, then you need to contact your emulator manufacturer.

[@shahul11p98]

@@BudgetGears i dont have any emulator with me sir, i am very new to this please help

[@BudgetGears]

@@shahul11p98 Then connect using datalogger. You can only datalog if you don't have a emulator. Not sure why you're connecting using ECU then.

[@bentata10cvs19]

What about if your using a moates ostrich for your emulator, you still would have to connect your ribbon cable to your laptop right? Since the data logger and emulator are two separate USB connections

[@BudgetGears]

Yes, datalogging and the emulator are 2 separate things. So you'll still have to connect the ribbon from the ostrich. Only the datalogger will be wireless.

[@matthewglaze5398]

Where did you get the cable to hook the Hc05 to the ecu? If you built one what size are the pin connectors?

[@BudgetGears]

Just search for dupont connectors.

[@ftonello1]

I have a Civic coupe D16z6 - 1995 equipped with a P28 ECU - with no modifications. Do i need do something about jumper J12 in order to comunicate via serial CN2 conector as you did?

[@BudgetGears]

You'll need to chip your ecu and remove J12 to use the CN2 port for datalogging.

[@ftonello1]

🤦🏻now i got it. the chipped rom has the codes to conunicate with the serial, ins't? i thougth i has a pure RS-232 TTL serial there at that pins... Mine doesnt have a chip...the board looks like new... in alternative. do you know if will work with hondash?

[@BudgetGears]

@@ftonello1 I've used Hondash on my chipped ecu's, but never tried datalogging on a unmodified ecu. I'm not familiar with getting the CN2 port to work on a unmodified ECU, but someone must have done it out there. I don't see a point in datalogging a stock ecu, but I guess some people may like it as a display or something.

[@ftonello1]

@@BudgetGears You´re complete right about dataloggin. The only point i see using hondash, is that you can makle a very low profile diagnosis, using the data that comes from stock ecu, to check the basics about your engine, mainly, if the cluster is working by compairing with the hondash. The rest is pure cosmetics. Thank you and congrats on your videos!

[@Elpoyoloco1]

Do you have a wideband connected and can read that well? And if yes you wired it at narrowband pin on ecu?

[@BudgetGears]

Yes, I have a wideband connected and yes I used same pin as narrowband. As well as used power and ground from ecu. And yes, it read no problem.

[@reykristophercantaco1418]

Hi i have hc05 but can turn to read

[@ImBenny]

I've successfully flashed the HC05. My phone can detect it but Hondash app says can't connect to ECU. My notebook can't even detect the HC05 module. What could be the problem?

[@BudgetGears]

Did you flip tx and rx back for your cn2 port on the ecu?

[@ImBenny]

@@BudgetGears It was a setting I had to switch in Windows 11 to detect this device. Now I can connect with my laptop but HC05 doesn't transmit data. I tried switching tx and rx but still can't get it work. J12 jumper is removed.

[@BudgetGears]

@@ImBenny you're datalogging with hts? Is it a hts map on your chip or emulator? Has to be the same to datalog.

[@ImBenny]

@@BudgetGears Yes. The ECU is flashed with HTS rom. So it is on chip. Now I'm trying to connect with USB to serial cable but I get the same result so I think my ECU may be faulty. :( Or datalog can't work without emulator?

[@roccodadon4211]

What’s up my guy? I got a chipped p28 and I’m trying to get into tuning but idk what to get to connect to my ecu to my laptop. Thanks in advance.

[@BudgetGears]

If you want RTP, then you'll need to run an emulator. The datalogger can be either bluetooth or cable. So you'll essentially have 2 connections. One from emulator and 1 from datalogger. If you're just doing it without a emulator, then just a datalogger to connect to computer and you'll need to remove your chip each time you make a change, burn the new rom, and then put the chip back. I'd suggest doing some reading on honda tuning to get the basics down.

[@roccodadon4211]

@@BudgetGears thanks 🙏🏾

[@gredybret4905]

my problem is with the hc-05 connection, is the hc-05 set to slave and master?

[@BudgetGears]

Slave. The master function is more for devices that search for other Bluetooth devices. Like your phone or PC. Since you use your phone or PC to search for the hc05 to datalog, it should be set to slave. Slave is also the default setting.

[@LSvtec]

Donde puedo comprar la pieza ???

[@user-zi9sj3uo4y]

Im stuck @ step 2. i even switch the tx and rx still nothing happens. 😢

[@vakhomakharashvili1800]

Did you find the solution ? Same problem here

[@rorenstv9051]

hello I tried to connect hc05 to honda tunjng suite but it is still promting failed to enter at mode after clicking connect on bluetotth setup hehe do you know why or how to fix it ? thanks

[@meditationlife9337]

There lots of different factory made HC05 . I got four different hc05 module and just one working ın my car. I tried before other 3 different mark HC05 ın HTS Bluetooth program tool but fail.

[@rorenstv9051]

@@meditationlife9337 i messed up my ecu trying to remove the cn2 pins i placed haha it pulls the copper traces from the board so now i will send it to someone who repairs pcb and ecu

[@Temppy1]

can i just use the cable to datalog ?

[@BudgetGears]

Yes, you can check my other video on how. kzbin.info/www/bejne/oHK2m6t7n6qFjZIsi=lT7NZido0ML0GTGh

[@darksoul0607]

Will this work on a stock box? I have a P08

[@BudgetGears]

What do you mean stock box? Like an not chipped ECU? I haven't ever tried to datalog on a stock ECU. It's always been chipped. Plus, you'll need to remove a resister to datalog on certain programs. Not sure which one it is for the P08 because that's a JDM ECU.

[@infotechplus1950]

What is the small cable called please?

[@BudgetGears]

Dupont connectors/wires

[@k7franklinbr]

Hello, friend. I've tried to program hc-05 with HTS, but without success. Despite of this, i've programmed with other software, changed the name and it connects fine on my laptop. But the HTS software doesn't enable the START option on Datalog Menu... I had changed the COM port to COM6 and COM6 (ingoing and outgoing), but i can't even try to connect and see logs, because my software doesn't allow. You can help me?

[@BudgetGears]

Did you remove J12 resistor? Also, do you have a HTS rom running on your ECU. You'll need this to be able to datalog on HTS.

[@k7franklinbr]

@@BudgetGears thank you so much. how can I check if my remap uses an hts rom? I’ve bought the car already with map

[@BudgetGears]

@@k7franklinbr that depends on if your ecu is just a burned chipped or you're running a emulator. But essentially you need to read the rom on your chip or emulator and look at what's programmed. HTS is usually tagged HONDATUNESUITE in the last buffer address. You can also read the rom and then save it and try to open in HTS. It will give you warning or not open if its not HTS rom.

[@k7franklinbr]

@@BudgetGears The big problem is my HTS doesn't show START DATALOG option enabled. It shows disabled in gray. In your videos it was always enabled.

[@BudgetGears]

@@k7franklinbr its because I'm running a HTS rom. Here's what you need to try, create a new HTS map, burn it to your chip or load it to your emulator, whichever you have, now try datalogging. The datalog only works on HTS with a HTS rom. Here's another example, people use tunerview and the hc05 to have a digital datalog on their phone for their car, tunerview requires you to select the protocol for your map. So if you're using HTS, you'd buy the HTS protocol and if you're using crome, you'd buy that, hondata, you'd buy that etc. HTS software can only datalog a HTS rom. In other words, you can't have a crome rom and try to use HTS to datalog it. You'll need to burn HTS rom then you can datalog.

[@Brodrdude97]

Can we get all links

[@FeraAlfian-vu1wy]

my datalog says the o2 is running 1v after warm, is it normal or is it running too rich?

[@BudgetGears]

Why are you datalogging with a narrowband? You need to get readings with a wideband. A narrowband has a very limited range. I can't tell you if it's normal because your car needs to be tuned to stoichiometric AFR with a wideband first.

[@FeraAlfian-vu1wy]

@@BudgetGears do you mean I can use wideband for only when datalogging or I can use it daily?

[@BudgetGears]

Depends on how you want to do it. Some drive with wideband even after tuning and some take it off after tuning. It is recommended to keep the wideband even after tuning if you're a built motor. It's a peace of mind when you've invested thousands into a motor. But wideband sensors tend to die pretty quickly. Really up to you. I honestly have no idea what you're doing. I'd say hook up your wideband and if you're wideband readings are what you expect, then you're fine. Narrowband only can read between 14-15 AFR. So you can imagine how inaccurate it is when you're car isn't always stoich.

[@FeraAlfian-vu1wy]

@@BudgetGears got it, just want my car to run smoothly but it seems like it's not as easy as it seems. it has 100k miles on it, I've spent thousands already and now I just like to play around to know my engine better. It's D16Z6 btw, Thank you very much for your response :)

[@BudgetGears]

@@FeraAlfian-vu1wy That's pretty low mileage. Is your engine all stock? What kind of issues are you experiencing? If it's all stock, there's really no benefit in running a chipped ECU. You're actually better off running an unmodified stock ECU. The maps on a stock ECU vs a chipped ECU will run differently. I'm assuming since you're datalogging, you might be running a chipped ECU.

[@reykristophercantaco1418]

How about for hc06

[@BudgetGears]

Yes, you can do the exactly same process with hc06. Just you'll select hc06 in HTS.

[@hectorjauregui5944]

will this work with obd2?

[@BudgetGears]

No. If you have obd2, you'll have an obd2 scanner port. You can just hook up a bluetooth scanner to that port and view things.

[@hectorjauregui5944]

@@BudgetGears thank you I figured, do you know of a cheap way to tune an obd2 computer in specific I have a 98 civic ex coupe and want to tune the car but I don’t want to spend crazy money on ecu like haltech

[@BudgetGears]

@@hectorjauregui5944 I'm not going to say it's not possible to tune the obd2 computers because some have done it back in the day. But it'll be near impossible to find any info on that as it was not a common thing to do back then and something no one does now. Tuning your car in general will not be something cheap. The cheapest and easiest way to tune an obd2 car was to convert it to obd1. If you can find a cheap obd1 ecu, chip it, run a obd2 to obd1 jumper harness, and find yourself maybe a moates ostrich, that would typically be the cheapest way to do it. That being said, obd1 ecu's have gone up in price significantly and it's very old technology. It'll probably run you around 500-1000 for a ecu, with emulator, and jumper harness, etc. But still cheaper than the Haltech. You can essentially get a Fueltech as well. Those are reasonably priced, but still about 1000 for that.

[@hectorjauregui5944]

@@BudgetGears yeah I’ll definitely do my research and thanks for the reply it helped a lot!

[@chesternoriega6415]

Is it possible to upload data from the laptop to the ecu? using Bluetooth connection? or it is for realtime logging only?

[@BudgetGears]

Datalogging is datalogging. It only reads data. For uploading data, which is the tune, you'll be doing that through your emulator (also know as RTP (real-time programming). They're 2 separate processes. I don't know of any emulators that are wireless. All the emulators I came across usually requires a cable connection from ECU to laptop.

[@chesternoriega6415]

@@BudgetGears Thank you for the information. I was just wondering weather we can also convert the signal from the cable to wireless for easier programming

[@reykristophercantaco1418]

Why my hc05 cant read though i follow your vid

[@BudgetGears]

@@reykristophercantaco1418 I don't know. You didn't provide much detail except it can't read. So it could be many reasons. Bad HC05, input output wiring reversed, bad ecu, J12 resistor not removed, software not setup correctly, using software that's not HTS, programming not done correctly, comm port not correct, etc etc etc. The list goes on. If the steps were followed exactly, then it should work. If it doesn't, then something else is wrong.

[@reykristophercantaco1418]

@@BudgetGears i am only on the stage of programing like you do in the vid but it cant read after i connect i swtich wring but still cant buti it is in at mode