Question about 1998 Audi A4

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1991 300zx low idle, and low oil pressure!!!

I just changed the spark plugs, yes i set the gap, and i turned the car on and, it turned over but instead of sitting at 1500 rpm its at 700rpm, very low, also i have little or no oil pressure, it runs fine at high rpm. Help.

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650 to 700 rpm is ideal for the 300zx. the 300 was meant to be a performance car used at the rpms of 3000 and 6000. i have a 91 300zxtt that i use as a race car and a low idle is never really a bad thing as long as it isnt searching or loping

Posted on Jul 08, 2009

  • andrew manshack Jan 26, 2010

    the gap should never need to be set on the plugs for the 300. seven hundred is great for the tt idle level 750 is ideal. u can use the idle adjustment screw on the back of the intake manifold on the drivers side to raise it if you want.... when idling the oil pressure should be between 40 and 50.

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SOURCE: RPM to low (700rpm) mitsubishi outlander 2.4L 2005

Your throttle body likely needs cleaning.

Take the intake hose off and using throttle body cleaner or brake cleaner, spray a rag and use our fingers to clean the gunk off the throttle plate and the contacting area of the inside of the throttle body.

Posted on Sep 10, 2009

daltonp
  • 361 Answers

SOURCE: 1984 nissan 300zx oils pressure gauge goes to

Sounds like an electrical problem, make sure the ground leads to the engine are good and the battery terminals are clean. It might just be a bad connection in the wiring harness try jiggling the connections to see if it makes the gauges jump when it is running.

Posted on Jul 20, 2010

  • 59 Answers

SOURCE: my 1991 nissan 300zx twin

Probably rev limited.

Posted on Jan 04, 2011

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