IDLES WIERD RUNS FAST THO
IDLES WIERD RUNS FAST THO
I HAVE A NISSAN A31 CEFIRO , STOCK AUTECH TUNE, IT RUNS REALLY GOOD, WHEN BOOSTING, BUT AT IDLE IT SHAKES, NOW WHEN I PULL OFF THE OIL CAP ENGINE STALLS, I HAVE 135 PSI COMPRESSION, AND FOR SOME REASON, IT HAS VACUUM WERE THE LIL BREATHER OUTLETS COMING FROM THE VALVE COVER TO THE OIL CATCH TANK, AND IT HAS VACUUM, I CHECK FOR VACUUM LEAKS EVRYTHING FINE, AND CHECK FOR CYLINDER LEAK DOWN TEST HAS GOOD PERCENTAGE. HAS LESS THAN 1 PSI OFF BACK PRESSURE THREW THE EXHAUST,ALSO CHECK THE VACUUM, IT READS 14 IN/VACUUM, ANYONE HAVE ANY CLUE, THANX FOR THE HELP
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240sxautox
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- Joined: Wed Nov 01, 2006 8:15 pm
- Car: 1993 Nissan 240sx SE
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Re: IDLES WIERD RUNS FAST THO (jdmnancy)
Do you have some crazy cams...
if so, and you don't like your idle... send them to me
if so, and you don't like your idle... send them to me
Re: IDLES WIERD RUNS FAST THO (240sxautox)
If I am reading right you probabally still have the PCV valve hooked up and a catch can vented to atomosphere.
This can lean your car at idle making it idle rough. The PCV closes under boost.
Evan
This can lean your car at idle making it idle rough. The PCV closes under boost.
Evan
Re: IDLES WIERD RUNS FAST THO (240z4u)
will this make it run with 14in/vacuum240z4u wrote:If I am reading right you probabally still have the PCV valve hooked up and a catch can vented to atomosphere.
This can lean your car at idle making it idle rough. The PCV closes under boost.
Evan
Re: (Carl H)
found da
rom, it is a faulty coil, #6 cyl, that was causing it to have 14 in/vacuum cuz of the cyl not working, thanx for you guys help, helped me alot,, *** for compression, wats the min and max for a rb20Carl H wrote:yes as it is an unmetered air leak.compression is also a bit low.