Hello everyone! Its been a while since i've posted, but I've slowly been rebuilding an engine for my 420 GSI Sport Turbo Conversion as the last one starved itself of oil and well......that was that!

The new engine is forged internally, has the larger 2871 Turbo and a lightened flywheel.

Now.....here's the problem. I'm having what i believe to be a fuelling problem.

The car initially wouldn't start at all, the fuel pump would very infrequently prime, after that it would cough but not run. I have since bridged the fuel pump relay to have it run all the time, and now the car will start and run perfectly, you can even rev it slightly.....for about 10 seconds then it will die.

What would the symptoms of the incorrect holed flywheel being used? Also, what would the symptoms of the ecu cutting the immobiliser be?

I wouldn't expect the car to run at all with the wrong flywheel? Or am I wrong?

Thanks in advance. Luke

If you have a dizzy flywheel on a wasted spark engine you would have the issue you mentioned.

I assume you’d have the issue the other way around?

Yep

Thanks for your advice Dist. It was the wrong flywheel. The car now purrs.

I’m still having an intermittent starting fault and the car smells like it’s running very rich. Lambda aside, anything else that can cause this with the T16?


Thanks in advance.

Lambda prime candidate followed by cts