Hammer mod TDI VE Injection Quantity adjustment, VCDS adaptation

I show you how to adjust the IQ on a VE TDI with 2 methods. This can resolve smoke, hard starting and some other issues.
Loosen the 3 LOWER bolts and the single special bolt, not the upper ones like I state in the video.
Vehicle being worked on is an 03 VW Jetta TDI ALH.

[@NeuroPulse]

This is awesome, thank you. I'm due for a fuel filter change. I'll see if that fixes my issue and if not I know what to do.

[@aryall]

great vid. it made my setup that much easier to do.

[@stkgsh5513]

The bolts you released are just for the lid. All except the special bolt. It goes further down. It is the lower boots you are supposed to loosen, and then iust tap the pump very slightly.

[@MK4moTDI]

Ya I said the wrong bolts in the vid. But i do say the lower ones. Hope people don't miss that.

[@stkgsh5513]

@@MK4moTDI 'course you were wrong. Don't worry. If you haven't done anything wrong you haven't done enough.

[@user-ve2dc6ps1p]

The special one is the big one?if i do the same am i getting more fuel?

[@sorincovaci2335]

Nu

[@scottd1489]

So just loose the special bolt the triangle bolt and hit it? Do you need to loosen the other 3? Mines is lower limit and needs to come up. Please help. Thanks

[@TheBlankenman]

Great video. Andrea Manae had a good question. What would you consider the best numbers for fuel economy? Not looking to add more power. I have a 02 ALH Jetta TDI wagon. Thanks

[@MK4moTDI]

6 is a great number to aim for.

[@user-kc9lk2lt1w]

Good video Once you get it close to your setting MANUALY you can change it using the Ross Tech cable , it will be stored in your ECM ,My 1.9 TDI Ross tech program will only take it down to 3.5 so I have to adjust it manually ! {Take it down more at the pump} ,Then fine tune it with the Ross-Tech program HEX-V2 ! Hope i make sense

[@MK4moTDI]

How low are you trying to get? I usually set the settings with vcds to stock numbers and then do the hammer mod to adjust close to there you want it. You then can adjust it up or down with vcds for a more accurate adjustment.

[@user-kc9lk2lt1w]

@@MK4moTDI I was trying to get 2.8-3.0 I could only take it down to 3.5 that's it ! it would go up to 15 and higher so much it almost flooded it's self ! So the pump had to be manually reset with the hammer then fine tune it with the Hex-V2 Where do you find the stock numbers.

[@user-ie3vw3dp4u]

Молодец!

[@mattflight6946]

hi cheers for the vid!, out of interest have you put bigger injector nozzles in or you keeping them the same?, cheers

[@MK4moTDI]

I have larger injectors in.

[@miraanhartzenberg842]

Hi. What size injectors you have in? I'm from south Africa Cape town. It is very pricey to get bigger nozzles here. .by any chance what are decent brands to get your side and import them?

[@ricric828]

Corect...👍

[@theesotericworldofjason1661]

What kind of computer are you using? Great vid btw

[@MK4moTDI]

That is an RCA viking pro 10 Windows tablet.

[@wyattmccandless]

What version of VCDS are you using? I'm just getting into this as I have two TDIs and my brother has one as well. Would like to get more familiar with VCDS and be able to make changes to things.

[@Slave4UMrs1]

Hi dude,please tell me how did you connect your tablet with the car? What operating system in your tablet running,android or windows?

[@MK4moTDI]

Windows with Ross-Tech VCDS

[@Slave4UMrs1]

@@MK4moTDI with the normal bleu vagcom cable? Kkl?

[@MK4moTDI]

@@Slave4UMrs1 if you can get that to work.

[@rebeccanininger9487]

Will an incorrect injection quantity adjustment damage the engine or is it a drivability tuning issue?

[@MK4moTDI]

I do not believe it can damage the engine.

[@tomgreen749]

i have a hard start on my 2002 vw jetta tdi , car will only start up if i plug my frostee heater up please help temps in NY have been around 25 degrees and below

[@MK4moTDI]

Did you check IQ and IT with VCDS?

[@FlashTechEngineering]

Hi, what's the vehicle and tdi engine and year.. cheers good video 👍

[@MK4moTDI]

03 VW Jetta, ALH. Same from 99-03 Golf and Jetta 98-03 Beetle.

[@timothywalker9398]

What fuel filter setup are you running?

[@MK4moTDI]

Nicktane

[@FOTROXIC]

Hello I hope you still read the comments :) I have a golf 4 1.9tdi ALH (90hp) with cat delete and egr delete also stage 1 tune. What should be my IQ? What is the normal for this setup? Also I want to upgrade my nozzles to .216 nozzles when I upgraded it should I upgrade my IQ to? and what should it be. I hope you answer. Thank youu :)

[@MK4moTDI]

I found between 3.2 and 6 to be the best.

[@FOTROXIC]

@@MK4moTDI thank you so if I upgrade my nozzles it should be between 3.2 and 6

[@MK4moTDI]

@@FOTROXIC ya stock and upgraded I aim for 4.2.

[@mallikarjunreddy4974]

What are the symptoms of the timing being out at the pump? I mean can a person just drive a vehicle with ALH in it and tell that the pump’s timing is out? I don’t have VCDS but experiencing loss of power ,hence the question

[@MK4moTDI]

Hard starts can be one.

[@user-fq1cp1sv9c]

Saw some of your videos how do you the vcds program I got 2 jettas tds

[@MK4moTDI]

Order RossTech.

[@jackbarb9668]

Is 94.5c normal temperature? Mine used to sit at 90c 92c after a hard drive , after changing the thermostat it now sits at 93c to 97c driving hard uphill does this seem normal?

[@MK4moTDI]

Ya, the ALH engines are very efficient making them not get very hot.

[@bornandraised4320]

You're supposed to loosen the bottom bolts, not the top ones.

[@ekoorbhtebazile]

Yeah that’s what I was thinking the bottom one has some play in it the top is set.

[@MK4moTDI]

Ya I wrote it in the video, but I think people are missing it. It is the lower bolts. I mistakenly pointed out the top ones.

[@bornandraised4320]

Love the video. Just hoping people see this comment or yours

[@easymac79]

It's the top piece???! FML! I marked the bottom section, not the top one when I took it apart and that's what I've been trying to adjust! Holy guacamole I am an imbecile! It's 4AM right now, got the battery trickle charging, I am excited AF to get out there and hopefully fix my car! I don't have the software, I can only start it with ether and it won't rev past 2k RPM at WOT. Virtually zero power if you try to actually move the vehicle it just dies.

[@scottd1489]

Same issue in having g on vw polo 1.9 sdi 2005

[@abdulbeany1894]

Hi can i do this on audi a4 2.0 tdi pd 2006 my car is shaking at idle and injection quantity bouncing around 1.5 to 2.5 mg/str

[@MK4moTDI]

I'm not sure how to adjust a PD, but I'm sure you can find info on this on the TDI forums. Sorry I couldn't be more help.

[@abdulbeany1894]

@@MK4moTDI thank you for replying back appreciated

[@mattrobi9348]

Hello I hope you still check the comments my IQ is at 20mg and that’s at running temp I just swapped my 10mm pump out to an 11mm and I’m getting the 20mg reading with the new pump in. If anyone has any ideas please lmk

[@MK4moTDI]

Hammer mod. You are going to have to loosen the head and wack it over to get it lower.

[@BenYokumFarzet]

My injection quantity is 11 mg/str, 1.9 tdi pd engine. What can be the problem?

[@MK4moTDI]

Seems high and might be adjustable via VCDS. I'm only familiar with VE ALH engine.

[@a3_tigar]

Can i adjust injectiin quantity without the hammer mod?

[@MK4moTDI]

Yes it is in the video.

[@scottd1489]

Hi. Vw polo 1.9 sdi. 2005. What should the lower range be? And what should the higher range be please. I am getting the N146 lower limit reached. Any help is welcome please

[@MK4moTDI]

You will have a PD TDI will you not?

[@scottd1489]

@@MK4moTDI what a PD? Mines is 1.9 sdi vw polo

[@MK4moTDI]

@@scottd1489 ok we don't get these engines here in NA so I know nothing a out them. Sorry.

[@c0rb3a]

what is the best IQ number for fuel economy? thanks

[@MK4moTDI]

I found 6-7 to be a good spot.

[@emremustafa9178]

4-5

[@georgevoicu2657]

How do i get The adaptation cod on my mk3 tdi

[@MK4moTDI]

Usually said it in VCDS for you

[@lapazreyes]

Can you change the numbers without doing the hammer mod?

[@MK4moTDI]

Yes. With VCDS, but it is only a small movement.

[@askingforafriend6115]

did you watch the video?He stated you can do a small correction with vcds.Maybe you need the hammer mod done to your skull.

[@anthonybarger]

Will this solve the limp mode of tubro or faulty injection pump if the codes are shown. I have EGR delete.

[@MK4moTDI]

What's the codes for?

[@anthonybarger]

MK4mo TDI replaced new N75 code 16629 , still the same problem. 16600 - P0216 (N108) other come. N214 , I just need to replace the coolant thermostat valve.

[@anthonybarger]

Injection Valve is N108

[@RGV2300]

You need to fix any dtc present before attempting modding.

[@TheAbrunqaj]

Will I be able to do this with the VCDS LITE version, not the free one but the $99 one ? My IQ is showing 12 mg/str in the free VCDS version. My 03 ALH is blowing a lot of white smoke. I already changed a bad turbo with bad fins and leaking oil. I'm assuming the car had a runaway because all the charge pipes and the EGR were soaked in oil. I just got the car 3 weeks ago for $1250. 190k miles.

[@MK4moTDI]

I'm not 100% sure about the lite version.

[@Callagwhan]

Works fine

[@akkwilly]

Can you give some details on that fuel filter setup?

[@MK4moTDI]

It is the nicktane fuel filter set up.

[@mohammad_rameez]

Can it be done without vcds? If so how can i find its near to 3-4?

[@MK4moTDI]

Doesn't need to be vcds, but it needs a program that can read the IQ.

[@mohammad_rameez]

Can u suggest any?

[@MK4moTDI]

@@mohammad_rameez Ross tech, OBD11

[@junkemails5050]

Please someone reply me here, i need help, i measured the resistance on the pump conector, the pins 5-6 and 2-3 are correct resistance but 1-3 is out, not between 4.9 to 7.5 ohms, its showing 12ohms, so based on this manual service is saying to Replace pump, i put too much money on this stupid car, and i just lost my Job, can’t afford the crazy price of a new pump neither afford to pay for someone do the pump replacement. I am driveway car worker, iam not mechanic neither got the tools to pull the engine off, if id had to take pump off and mess up with all the timing belt stuff i could mess up it more.

[@Bc-um9qx]

I've got mod out the ass never used vcds just a custom tune flashed what's the purpose of this hammer mod less or more fuel if it's more fuel any draw backs also y is it needed if it's less I understand I have 230 injectors I'm on my 3rd turbo lol car won't seem to run less than 30 psi at wot no matter wtf I do

[@miraanhartzenberg842]

How much did u pay for those nozzles?

[@malcolmyoung7866]

The ‘hammer’ mod is to adjust pump timing when it’s out of VCDS parameters. A mechanically well timed pump should start immediately but if not adjusted within VCDS it may not run efficiently or well. The hammer ‘taps’ move the pump and increase or lower the IQ. If you can get it to within the spec range of VCDC you can then use the IQ adjustment(when you have tightened the screws/bolts on the pump) within VCDS to make fine adjustments to get the engine running correctly. Some minor adjustments can be used for more power or economy… Hope this makes sense.

[@alvaromillward4559]

Pleeeeeaaase someone explain me for gospd sake iv been watching lots of people saying that if the number of injection quantity is lower it gives you more power because it injects more fuel . BUT HOW A LOWER NUMBER CALLED INJECTION QUANTITY IT INJECTS MORE FUEL i mean it doesnt make ANY SENSE

[@MK4moTDI]

There is a very good explanation for this on tdi club. Also too low is also not good. You want just the right amount.

[@burnaout773]

is this for real ?

[@3nch1]

I need more fuel= more power I have stage 1 but i need more fuel What i want lower iq or ?

[@emremustafa9178]

yes down to 2.0-2.2

[@MK4moTDI]

3-4 is the best spot for it Imo.

[@desgfsdg]

híí my car alh 1.9tdi stage1 how much ideal? I want to many big smoke?

[@MK4moTDI]

ALH, BEW or PD?

[@karlowolf05]

Higher the number more fuel or vice versa? I heard different opinions...

[@MK4moTDI]

The reading is in mg.

[@junkemails5050]

Come on is that for real?

[@cancerealtm623]

so why is it good for us?

[@MK4moTDI]

What?

[@cancerealtm623]

@@MK4moTDI that hammer mod

[@cancerealtm623]

@@MK4moTDI what is this doing to the car? why is it recommended? or what ? if i change the timing to the good value, why is it needed to hammer mod?

[@MK4moTDI]

@@cancerealtm623 hammer mod is needed if you cannot get the value in spec via coding with VCDS.

[@cancerealtm623]

@@MK4moTDI but what value is this? timimg?

[@junkemails5050]

This a joke right?