A '72 Djet question, Ug a Uhg a Ug a Options

[Michael J]

Have had my 914 for a couple of weeks now. It's a stock 1.7. It's in the garage getting a few little details taken care of but I need your collective wisdom. The car starts at the touch of the key. It idles at about 2 grand and once its' warm and I drive off it surges all the time. The car has sat for quite a while so I put fresh gas in and some gas dryer. The PO says it ran ok a couple of years ago. He had 18 cars and probably didn't pay much attention. I have been checking all the vacum hoses and they look ok but can't tell for sure if there are leaks.
Your Thoughts?

Mike

'72 adriatic blue 1.7 - my one and only

[John]

If you really suspect the TPS, do what I did, I took it apart and very carefully cleaned the contact points. I used a little denatured alcohol on a Q-tip. It took care of my hesitation problem.

You could also simply UNPLUG the TPS and see if the surging stops. The car won't accelerate quite as well without the TPS as it enrichens the mixture (adds pulses of fuel to the injectors), but it will run.

My thoughts are that you have some big air leaks (that you need to fix) and the car is having lean surging. If this is the case, when you fix the air leaks the surging will stop.