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SOLVED Hi all. Problem solved with a lot of help from some very kind people... thank you so much Aragorn, JBH and everyone who helped. The solution is a nutshell: I bought an interface to read the Audi's electronic system and do fault resets using a laptop. One member here sold me a G28...

Anyone know if there's a limp mode on myA4 19.TDi (B5)? as I think mine's an early model. Its serial number is WAUZZZ 8DZTA 236955 It still won't start at all, I get the same error Quantity Adjuster Upper Limit (N146) error. The valve JBH mentioned to check/clean at the front of the injector...

Thanks for the help lads. @jbh how do I remove and clear that sensor from the pump to clean it? What both of you say certainly makes sense.

Hi all, I keep deleting the error codes and trying to restart the car/turning the ignition (electrics) on and off. First I got: 00513 Engine Speed Sensor (G28) 27-10 Implausible Signal - Intermittent this came a number of times (and was back immediately I deleted it again and again. Until I...

tested the airbag too now - no faults found

Hi Aragorn and thanks once again.. I tried as you said and now get only one engine fault code (didn't test the airbag) and it says: 01268 – Quantity Adjuster (N146) 18-10 – Upper Limit – Intermittent

Hi all, I have got hold of a computer analyser for the yet sleeping Audi... here are 2 photos of the readout, anyone know where I go from here or can tell me what the problem may be based on this new info? thx Jules

With the possibility that the ECU has packed up completely, how do check if it's actually working at all? And what basic checks are there (visual or multimeter) to see if there's an earth or power supply problem to it? I've read loads of posts now in many Forums and it's clear that there are a...

Hi all, I borrowed an older OBD2 tester.. not having any luck with it so far, no LED on it, but a new one's on order. If the ECU is not getting power then would that mean no lights at all on the dash? (fuel, oil, immob etc). I wonder if it's not getting power, but i have checked the fuse. AS...

Hi all, 1. Well I have cleaned out the capillary hose in and leading to the MAP sensor in the ECU which was full of oil. No luck so far. 2. I can't find any instructions on the 'net (or diagram of the connections) to test the spill valve and its power supply from the ECU on the Audi A4 TDi 96...

Thanks Aragon. Lots of good info in that link you sent me. Here for me is the crucial info: "The spill valve is just a fast operating solenoid valve, it has 12v on its +ve side and the -ve side goes to the ECU, at the start of each injection sequence the ECU 'grounds' the -ve side and the pump...

Thanks lads. 1. So if the immobiliser works indirectly - i.e. affects the ECU, then I take it the ECU not only manages the injector performance but can physically shut down the injection completely, rather than just 'messing it up a bit'? Is there a way of putting the car into a 'default...

Can anyone tell me precisely the immobiliser works physically? I mean, what does it do once activated? Does it just affect the fuel cut off solenoid or does it have some complex function inside the injector pump? I'm wondering how I can bypass it just to check if it's that (though the lights on...

Hi Sandra and Jbh, I'm a Brit out in ze forests of Sweden. Can I buy a scanner and do a vcds scan myself? What's a good one to go for and where from? Amazon and eBay usually deliver out here readily enough. It's an old car and I worry that I could end up spending too much on the auld Audi beast...

Hi Aragorn, and thanks. 1. I'm not sure how to check for fault codes.. does that mean I have to buy a code reader or does the car have a facility to find fault codes built in? 2. The MAP sensor in my car is built into the ECU. Do you mean it ought to run if I unsolder it altogether? Or just...

thx Jim.. will do :)

Hi all, yesterday I put this new thread up on the A4 forum (where it rightfully belongs) and someone suggested I put it on the A3/S3 forum too to see if anyone has any ideas... hope you don't mind...? *** Hi all, another newbie here:- if this has already been threaded up then I apologise, but...

Hi Karl and thanks for the help. I have been trying to start the car on pure clean Diesel straight from a glass jar via a brand new lift pump, (but nothing is being sucked up), and of course I am cracking open the injectors, but there is no fuel throughput at all. You may be right in that...

Hi all, another newbie here:- if this has already been threaded up then I apologise, but i have been searching for answers on the net for the past 8 hours with no joy so would be very grateful for some help: My 1996 Audi A4 started losing power on a long run, and died after some 30 miles. I...