Been a minute since i had a question... High revs issue

I'll give that a try and post what happens

Good luck out there. Everyone deserves a trouble free riv.

Wow just saw your sig LLamalor thats a beautiful 95

Well hey thanks! doin the best I can with it. Us 95s have gotta represent! Haha

You ever get your problem tracked down?

So still hunting issues, got engine dying on fast release of the throttle , inconsistent idle and similar issues that lead to the initial theory of a vacuum leak. However I have checked all my vacuum lines and they are solid. Wondering if egr could cause the same issues tho it appears to close fine. Is this ever how the motor acts with a leaking upper manifold gasket? On a side note should the injectors be loose enough to turn by hand ? Twisting that is. Also wondering if a bad cat could cause the issues as well.

Take an actual vacuum reading with a good gauge. Fully warmed up, it should pull 20", at idle, in Park.

I'll try that tonight, have to borrow one

Hi Mike. EGR should throw a code if acting up. I'd find a way to read the codes. Search around our forums, I know a few OBD 1.5 guys have done it.

Did the high RPM problem go away?

Unless your LIM gasket is really bad, I don't think it would cause the problems you're describing. I'd think performing a vac test as Larry mentioned would rule this out. Another way to diagnose leaking LIM is to pull the plugs and check condition. Have you done this? Coolant in the cylinders will leave a crusty residue on the electrodes. Also you can send an oil sample to blackstone labs for analysis - they will find contaminants in the oil.

Injectors should be snug, but they will move. They are compressed between the fuel rails and the manifold, insulated by O-rings on each end. Twisting them is probably not the best thing for the O-rings.

I don't think a bad cat would cause this. Symptoms of clogged cat are limited upper RPM. If your cat was not working, again the codes might reveal it. Get the codes read, even if it means taking to a tech. That knowledge will help here more than guess-work. I feel this is related to a sensor (IAT, MAF, or TPS), but can't know unless you read codes, or blindly start replacing them ($$$$). Best of luck!

Ok been real busy with work. Replaced iac that stabilized my idle. Throwimg no codes at all. Replaced fuel filter tonight as under load I am climbing through rpms kinda slow. Still having a problem on fast release of the throttle. Thinking I have good vacuum as poping through the gears pretty quick