hh964

Hi, to everybody on this board!

A few weeks ago my 1990 964 C4 showed up with the following problem: the engine starts perfectly fine every morning; however, when re-starting a few minutes or even an hour later, I have to give it two to four tries for firing it up again. Sometimes it seems to help when I turn the ignition key a bit slower than usual. I've changed the DME relay - yet the problem is still there. Would you please help, if you've had similar problems?
Yours,
hh

horst

I had a similar problem about a year ago. The most commonly suggested culprit was the cylinder head temp sensonr. That was not the problem in my case. I had one bad coil and a flywheel position sensor that were bad. -2 problems Not two for the price of one, rather two for the price of many

Fortius

I have posted a similar question about a week ago [Emission & Starter Headaches]. Adrian has also a post in the technical section.

I think it's the O2 sensor in my car, but I will know more tomorrow after visiting my garage.

Richard H

Any result with the O2 sensor?
I've got the same problem that has returned. I'm sure the head temp sensor is okay (checked with a meter at various temps. changed DME relay, e.t.c.)

Richard