GM OBD1 tuning with Moates APU1 Autoprom - burning 27SF512 chips

[@GuessWho785]

Great vid, I am 23 and have spent numerous days and hours learning about gm obd1 tuning, i get the gist of it, but, still would love to see you make a video or videos showing the tables to edit and how to edit them! like watching your vids. Hope to hear back from ya.

[@GEARHEADdezign]

Each mask is different in the way they work. I know $A1 and $0D really well for my Beretta and z71. But the basics are the same. Set your injector constant to match your injectors and displacement, and then use BLM logging and/or wideband to adjust your VE and PE tables

[@GEARHEADdezign]

Gearhead-efi.com and Thirdgen.org have a lot of info

[@Edscarvideos]

Great video. Thank you. I just picked up a motes adapter for my 1989 formula 350. Looks like I will need a couple more things.

[@Gpimp2000]

what else did you end up getting?

[@trentshull6356]

Thankyou brother🪖

[@amarsta]

Thanks for the info!

[@evsnova74]

I'd be interested in videos on any and all obd1 tuning info you could provide. I remember Jeff Counsil on quad4forums (and probably berettanet too I'm sure, iirc he used to go to the bfests) would burn chips for guys with various options like fan on off temps, idle speed, fuel cutoff speed, etc. But I thought he could just write over existing chips because he was always asking guys to send him ones they got from junk yards. Could just have been an assumption on my part. But either way I need to get into this at some point.

[@GEARHEADdezign]

Yup, Jeff is a guy I've consulted before. I kinda became a "guru" myself because I had to. I bought a 3400 swap chip and it was pretty terrible. Got mine to run mint eventually and fixed a couple buddies' cars too.

[@hishighness1516]

Thanks .. 🙏🏻

[@Mr.Vazquez]

Do you offer chip burning. I need one for a 91 c4 corvette 350 TPI i already have a adapter just need a chip

[@GEARHEADdezign]

I don't. I actually sold my hardware when I sold my last OBD1 car. I'm sure you could find someone on thirdgen.org though

[@GhettoWagon]

I think these are the same chips I need for my 94 C1500. I need to change the settings on my 305 TBI engine 4l60E for a B-body LT1 cam. Think its a $0D mask its a 395 ECM. I can read the factory Chip/ Knock sensor Memcal with the moates adapter? My chip is soldered to the memcal.. I think? I dont think it has the base like this.

[@GEARHEADdezign]

Yes. My 94 was a 7427 but it was also $0D. The G1 adapter will allow you to read and write a 27sf512 chip with the Autoprom. If you have the smaller adapter just for the chip, that will allow you to read the stock tune

[@GhettoWagon]

@@GEARHEADdezign Ya i think my 395 something computer operates the same way as the 7427 I hope I can read it I think its soldered into the mem cal, the factory prom Dont even know where I can get a 94-5 TBI 305/ 4l60E factory .bin Ordering some Moates stuff soon Get like 10 chips? hahah

[@GEARHEADdezign]

@@GhettoWagon gearhead-efi.com had a lot of stuff...might have your stock bin

[@GEARHEADdezign]

Here's the link for the adapter to read your factory BIN www.moates.net/hdr1-memcal-header-p-52.html?cPath=64

[@GEARHEADdezign]

And here's the g1 you need www.moates.net/g1-memory-adapter-tpi-etc-p-32.html?cPath=64

[@mohamedghuloom6666]

Thank you for corporations with you

[@davesmith2187]

would this remove the governor on my 91 camaro

[@GEARHEADdezign]

Yup. I had the speed limiter on my Beretta set at 255mph🤣

[@mohamedghuloom6666]

You can you used tuner pro software with eeprom ch341a

[@BoostedNW]

No that is not the right type of "chip burner" for what your looking to do.

[@clintchisler6835]

Hi. I've got a 1988 S-10 with a 4.3 Throttle Body that runs really rich because I live at 7,500 ft in elevation. Does my truck have a prom that could be re-programed to lean out the injection system and get this truck running better? Right now I get pretty bad gas mileage, low power, and sometimes the engine acts like its choking. Thank you for this video and any help you can offer.

[@GEARHEADdezign]

Your existing tune should read the MAP with key on engine off before starting and compensate accordingly. Reads it like a barometer. But yes, you should also be able to tune it however you want. Although your issue might just be a bad sensor. I would datalog first and see what sensor might be reading erroneously.

[@clintchisler6835]

@@GEARHEADdezign thank you so much. I’ll check the sensor before I tackle any computer type mods

[@mohamedghuloom6666]

What’s is software you used on your laptop because I want used already I have this product only I want this software for tuning

[@GEARHEADdezign]

TunerPro RT. Free download online

[@rmaiocch]

1991 4.3 chevy TBI losing one injector sometimes, could it be a chip .Installed new injector, new ecm with old chips, check all wiring. I am lost for now

[@GEARHEADdezign]

I don't think so. Could there be a break in the wire?

[@rmaiocch]

@@GEARHEADdezign I been checking the wiggle test can get it to do it and when it does it no change Bang on the dash next to the new ecm and injector came back on

[@GEARHEADdezign]

@@rmaiocch yup. Sounds like a wire break somewhere. Ohm both ends of all the wires that go to the injectors

[@rmaiocch]

@@GEARHEADdezign Its hard it don't always do it

[@GEARHEADdezign]

@@rmaiocch yeah. Wiring issues can be a nightmare because they're so intermittent

[@bijoutaylor3408]

I have a 1995 Park avenue and it has horrible throttle response i feel it has to do with tune

[@GEARHEADdezign]

It also might just be the automatic

[@darthvega6358]

I’m attempting something many say is extremely difficult, I’m planning to TPI a SBC 302, and have zero experience in tuning, I’m sure you know the 302’s rpm status and the TPI is a torque booster, I’m planning to boost with a centrifugal supercharger and was thinking of bypassing as much as possible, any suggestions or ideas of what’s a necessary and what’s not? The TPI is from a 92 model 5.7

[@GEARHEADdezign]

Oof. That sounds like a mismatch. TPI does help low end torque that the 302 lacks, but will severely choke it up top and you'll end up with the worst of both worlds...IMO.

[@GEARHEADdezign]

I planned on TPI for my last truck, but that was a low RPM application. And I picked up a 4.8 LS for cheap RPM in my current project.

[@darthvega6358]

@@GEARHEADdezign I’m hoping to get the torque and hopefully keep some top end with the supercharger but if it’s a bust I’ll swap the crankshaft and run it as a 327

[@GEARHEADdezign]

@@darthvega6358 replace the tpi intake with a single plane and I think you'll be happier. It will actually breathe up top where the power will want to be

[@koryl5959]

After I build my motor would I be able to tune on dyno with this program?

[@GEARHEADdezign]

It works best with a bench harness, so it would be kinda time consuming, but it could be done. The read/write process is also slower than hptuners. I tuned my truck with it via datalog.

[@joshlara8237]

Will the fitech be better since its self tuning so i can order it n swap out the tbi on my camaro

[@GEARHEADdezign]

It all depends on your priorities. I tuned my TBI truck and v6 Beretta with the factory computers. That also enabled me to help quite a few friends with their cars. If you go fitech you'll spend a lot more money and it will only benefit one car. But the learning curve should be a lot easier.

[@brianbvachek3219]

How much would you charge to teach me how the computer works? Lol Ive tried this time and time again and never caught on. Bought a truck with a moates set up and was tuned by prior owner. For the life of me i cant get the tune up to even view it haha

[@keithrussell2307]

It’s not a bad system obd1 , l had a good friend change a tune on my 1995 Buick century

[@keithrussell2307]

I have tuner pro running live data feed when I need info .

[@GEARHEADdezign]

It has its limitations, but it has always worked for what I've needed. There is a code $59 I think it's called that's been heavily modified to do a lot more than the OEM stuff. Much more versatile.

[@darrenbartz4639]

Can u burn me a chip for an 88 c4?

[@GEARHEADdezign]

You're best off doing it yourself. "Mail" tunes are really hard to get right. Third-gen.org has a ton of information about those setups.

[@zerokool1256]

Let me know if you want move on form the apu1 👍

[@GEARHEADdezign]

I actually sold it with my last obd1 car. On to obd2 stuff now.

[@zerokool1256]

@@GEARHEADdezign I don’t blame you lol

[@GEARHEADdezign]

@@zerokool1256 I don't really care either way, but the LS stuff is obd2. And my Camaro is Holley EFI now🤣

[@zerokool1256]

So I got a apu1 to start working my tune on the old girl. Did you ever have an issues with with data logging, like the tunerpro dash not displaying anything and the needles doing a little bounce?

[@GEARHEADdezign]

Every now and then it would get weird and not want to connect. But you should be able to retry it and get it to work. Do you have the initial hardware settings correct?

[@mwyson4095]

Moates doesn;t even sell the autoprom anymore

[@GEARHEADdezign]

You're also a year late to this video🤣

[@mwyson4095]

@@GEARHEADdezign Take it down if it's so obsolete. I was just stating a fact that there is little hope left for these old trucks.

[@GEARHEADdezign]

@@mwyson4095 you could still buy one used. I sold mine to the guy who bought my obd1 Beretta

[@803greenfish7]

I have questions... 😂, If you are willing to school me I need info

[@GEARHEADdezign]

I can try to help. There's also a lot of info on gearhead-efi.com and thirdgen.org