1995 Cutless Supreme Problem

[s281er238]

My Car When I Start It My Rpm Goes Up To 2500 And Doesnt Drop Down Do U Guys Know What Its From Air Sensor Or What

Plus My Check Engine Light Has Been On For 2 Years But The Car Runs Well Is It The O2 Sensor

If Anyone Has Any Helpful Info On 1995 Olds Cutless Supreme 4 Door 3.1 V6 As Far As Problems They Get Or Have That U Can Share Iam Thankful

[MandaCHase]

My cutlass was doing the same thing.. well is as far as the RPM's shooting up like crazy - in fact when idling it jumps up and down - so I'm curious as to what others have to tell you.. but two different mechanics told me two different things - (1) said it was the air intake manifold? And another said it was I'm having a spark plug wire mismatch... I know that doesn't help you in the least... but I'd like to hear what other's have to say as well. GL!

[maxwedge]

On 2 years, great, now if there is another problem you don't know this because the same lite is on, get it scanned for the most recent codes, check for vacuum leaks, basic diagnostics here!

[s281er238]

I Fixed It I Replace O2 Sensor And Air Idle Controler And Trottle Position Sensor Car Works Like A Baby Now No More Light

[MandaCHase]

Originally Posted by s281er238

I Fixed It I Replace O2 Sensor And Air Idle Controler And Trottle Position Sensor Car Works Like A Baby Now No More Light

Which one of these pertained to the car staying at higher RPM's? I had my cutlass scanned twice now with no errors or codes but it's still idling really rough.

[steve102068]

I have a 1995 olds cutlass with a cracked pcv valve boot.
When I move the boot or remove the pcv valve from the valve cover the engine rpm increase. Hope this helps.

[maxwedge]

Welcome to AF, good info but look at the dates before posting, this is 3 years old!