Reving tooo high...

erald01 · 03-26-2008, 07:28 PM

Well i was missing two fuel rail spacers since i last changed my injectors, so since the weather was nice today i decided to put in the two spacers back on. Well a couple of things happen: 1st when i tried pulling the spark plug wire from the coil the wire seperated from the plug part that plugs into the coil. So i just reconnected them together. 2nd thing was and this is the important part, when i started the car it kept reving too high at like 2500 rpm but i noticed that when i touched the air flow sensor the rpm went down. Now my question is do you think its the spark plug wire? because i don't think so. Do you think it has to do with the fuel rail or the rail spacers that i put them back on, or do you think the injectors are messed up? Do you think its the air flow sensor? Or the pcv valve since that one broke too!

silver bullit · 03-26-2008, 08:43 PM

Make sure you dont have any boost leaks and your intake, intercooler pipes are tight and are not riped or got holes in them.

Fix the pcv and you can adjust idle with the biss screw on your throttle body.

erald01 · 03-26-2008, 09:10 PM

I don't think i need to adjust the throttle body because it was fine before i put those d**n fuel rail spacers, i don't know i might just have to take the fuel rail off again and put it back on.

Mr Peepers · 03-26-2008, 09:20 PM

Fix the PCV valve and see where it puts you.

If the PCV valve or tubing is damaged, it can let air behind the throttle plate and bring up the revs.

Check if the vacuum line is hooked up to the reference port on your fuel pressure regulator.

Make sure the throttle cable has a little slack in it too.

Do a boost leak test as silver bullet said.

erald01 · 03-26-2008, 10:10 PM

thanx guys i'm gona have to check all of that and see whats up.

erald01 · 03-26-2008, 10:14 PM

Quote:

Originally Posted by Mr Peepers

Fix the PCV valve and see where it puts you.

If the PCV valve or tubing is damaged, it can let air behind the throttle plate and bring up the revs.

Check if the vacuum line is hooked up to the reference port on your fuel pressure regulator.

Make sure the throttle cable has a little slack in it too.

Do a boost leak test as silver bullet said.

BTW i don't think the valve is damaged, its the valve cover that broke on me when i tried to tighten up the pcv valve. do you guys think it migh have to do with the air flow sensor meter, because when the engine was revung high i kept moving the plug on the sensor and it seemed to bring down the revs, but as soon as i let go it would go back to high again.