Rough idle when cold - things to check?
01-31-2006 | 11:09 AM
#49
Addic
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From: Fox Valley, WI
i think he was being facetious.
for me, on cold starts it would chug for maybe 15-30 seconds, surge up to 12-1300 or so, then idle around 900. the problem im also 99% sure was injectors, 3 of the 4 the internal shielding was toast. i dont have my new ones yet, and the engine is still outside of the vehicle, but way too much fuel being dumped can cause goofy issues
for me, on cold starts it would chug for maybe 15-30 seconds, surge up to 12-1300 or so, then idle around 900. the problem im also 99% sure was injectors, 3 of the 4 the internal shielding was toast. i dont have my new ones yet, and the engine is still outside of the vehicle, but way too much fuel being dumped can cause goofy issues
01-31-2006 | 12:45 PM
#50
Under the Radar
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Originally Posted by Porsche-O-Phile
Just replaced all the vacc. lines and installed a new ISV (works much better!) Car runs like a top right now except when starting the engine COLD, it'll idle at about 500 RPM, which is kind of rough (things vibrate and shake). Once warmed up it's *****-on 840 RPM. Thoughts on things to check?
Now I have the 800-1300RPM issue. It builds up and cuts out every 20 seconds or so. Guess I have to look into the TPS.
