using an obdeleven on a mk3

[swarz]

I have a mk3 with the ADY. I bought it with a dead motor and found another motor to put in it. I'm using the original dizzy and throttle body.
I can't get it to run, the idle hunts, it won't rev, has no torque whatsoever, I can't get it to reverse up the driveway.

I've bought an OBDeleven which I will let me clear fault codes but I can't get it to adapt the TB or anything more.

Any tips on how to make it work?

[feenix74]

If it is a ADY, then it should be a 1994 or a 1995 build engine, which I believe means that it is a ODBI not a ODBII ECU/interface. Not sure if ODBEleven will work with ODBI.

[Hodgey GTI]

Can confirm, what feenix has said, I made the same mistake as OP and had to buy another ODBI compatible cable and find a copy of vag com.

Sent from my ONEPLUS A3010 using Tapatalk

[Bora Sport]

I would suggest that you go back to basics. Check the valve timing, ignition timing and check for vacuum leaks.

[Transporter]

I have a mk3 with the ADY. I bought it with a dead motor and found another motor to put in it. I'm using the original dizzy and throttle body.
I can't get it to run, the idle hunts, it won't rev, has no torque whatsoever, I can't get it to reverse up the driveway.

I've bought an OBDeleven which I will let me clear fault codes but I can't get it to adapt the TB or anything more.

Any tips on how to make it work?

Check the firing order, most likely you didn't install distributor correctly.

[swarz]

I have checked the valve timing more than once and I'm pretty sure the distributor is timed accurately, I will check for air leaks.

[GeorgeMK1]

Check the firing order, most likely you didn't install distributor correctly.

I have checked the valve timing more than once and I'm pretty sure the distributor is timed accurately, I will check for air leaks.

As mentioned above, double check the dizzy mate. I have had my dizzy 180deg out, and it caused issues you are describing. It wont hurt to take the dizzy out, rotate the motor a few times to TDC and start the timing process again.

[swarz]

Ok, that is a bit crap as the blurb for the obd11 said it would work with this model and older vehicles too.

[Transporter]

Yes, it may work on them, but but you don't get much of the info. Most likely you get the rpm, maybe timing.

Did you get your car started?

[swarz]

A longtime replying. I gave up on it for a few years but back trying again now that I've lost my A4 to the airbag fiasco.
Replaced the fuel pump and the internal tank fuel line. the pump gets 4.5 v only with key at ignition point, no extra when cranking but I can feel the relay activating. Pump does work if given 12v. fuses ok.
Has it thrown a code to cause this low voltage?