Urs4 2.2T litle project

[Majorcina]

Dave,i checked the fuel injectors,on cylinder #4(second if u look from the back of the car) was not giving any changes when i pull off the conector,so i changed places for injectors #3 and #4 and again cylinder #4 was not working.
2 pins in the conector looked ok(it was dark but i think its ok-will recheck tomorow again)
Any clue what could it be?

[UrS4boy]

AAN Fuel Injector Wiring Info

Any clue what could it be?

The AAN fuel injectors get their 12V power via the red-striped Black wire from 87A on the Fuel Pump Relay via fuse S72 above the ECU via one of the two injector connector pins. What they still need is a ground that will allow current to flow through the injector, excite the injector solenoid, and open the injector for a precise time period, controlled by the ECU. This electrical ground is provided by the ECU via 5 individual injector wires, routed through the ECU where the ECU controls the fuel injection timing and duration, and then to ground via pin 14/55 on the ECU.

The five injector "ground" wires to the ECU are as follows:

Cylinder 1, Injector N30, connected to Pin36/55 via a white wire with violet (purple) stripe (W/V)
Cylinder 2, Injector N31, connected to Pin 17/55 via a whie wire with a brown stripe (W/BR)
Cylinder 3, Injector N32, connected to Pin 34/55 via a yellow wire with a blue stripe (Y/BL)
Cylinder 4, Injector N33, connected to Pin 35/55 via a yellow wire with a green stripe (Y/G)
Cylinder 5, Injector N83, connector to Pin 16/55 via a white wire with a blue stripe (W/BL)

AAN Fuel Injector wiring: http://forums.quattroworld.com/s4s6/msgs/90802.phtml

So you need to a) check for 12V power on the No. 4 connector pin - the one connected the red-striped black wire and b) check for continuity between the other No.4 pin (the one with the yellow wire/green stripe) and Pin 35 in the ECU T55 connector.

BUT before you do that, run an ECU output test and see if the ECU is communicating with the injector(s).

Follow this: http://www.sjmautotechnik.com/troubl...20v.html#outs4

and/or this:

[Majorcina]

I checked if the cylinder #4 is geting 12v,and it gets
Also did the OBD I test and all 5 injectors "clicked

[UrS4boy]

Improved POS diagnostic and fix info

I checked if the cylinder #4 is geting 12v,and it gets
Also did the OBD I test and all 5 injectors "clicked"

Okay, so it would appear that you have an ignition issue, not an injector issue.

Assuming that you have the OE POS and coil system still in place, then follow the procedure outlined here:

http://forums.quattroworld.com/s4s6/msgs/153152.phtml

[Majorcina]

Well,i dont have any more N122 and N127 conectors,since i have upgraded v8 red coils
Shud i try pulling coils and switch position for cylinder #4?

[Majorcina]

Well,i tested the coils,swamping the spots and it was all fine
But i also swap the spark plugs,and problem was found! They are NGK's and less then a year old and i didnt do on them 400km.I would say cheap problem
Thank's for help Dave

[UrS4boy]

Well,i dont have any more N122 and N127 conectors,since i have upgraded v8 red coils. Should i try pulling coils and switch position for cylinder #4?

Yup. Pull coil packs 2 and 4 and swap them. Miss should (in theory) move to No. 2. If it stays on No. 4, then you might have a spark plug issue on No. 4.

[Majorcina]

Read above post Dave

[UrS4boy]

Well,i tested the coils,swamping the spots and it was all fine. But i also swap the spark plugs,and problem was found! They are NGK's and less then a year old and i didnt do on them 400km....Thank's for help Dave

If it stays on No. 4, then you might have a spark plug issue on No. 4.

Ding.

Happy to have helped.

[UrS6 - IamS6]

Lovely job. Bet you're glad it's done.

Sits nice on the H & Rs. What's the the comfort like ?

Thanks.

[Majorcina]

I would like if it was litler lower
For now i drive slow until i am sure evrything work ok,car is litle harder but nothing big

[Majorcina]

Well,today it was big day for me
My spark plug which was not working arived today and i change her
Went for a test drive and in 1st and 2nd car pulled nice but in 3rd over 4.5k rpm car went in limp mode,restart it and same happend in 3rd gear same rpm
So i did blink code check and showed that knock sensor No.2 G66 was not working,i had spare and change it and car was flying
I am so PROUD today,all my hard work was for this day,the day when car was pulling and working properly
I got a video with sound and aceleration of the car,but camerman didnt do the job nearly good so I apologize

U can clearly hear the turbo,but i would say that is becose i dont have the "carped" on the hood,so i belive this is why is so loud?What u think guys?
P.S. i like the sound of turbo spool up so much

[hunker7]

Video isn't working mate.

[quattrostyle]

[hunker7]

It's chipped right?