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-   -   idle problem (http://www.njfboa.org/forums/showthread.php?t=51222)

bobb1589 05-05-2010 02:30 PM
idle problem
 
Hey guys.... my car randomly started idling at around 2000rpm... it will stay constant sometimes at 2000rpm and then sometimes drop and then go back up, drop then go back up... does this sound like a bad tps? this is kidn of urgent since i need to make it back down to school for an exam at 7


its a 95 3.4l

sweetbmxrider 05-05-2010 03:08 PM
can you get the computer scanned? it could be quite a few different sensors to be honest.

WildBillyT 05-05-2010 03:17 PM
Quote:
Originally Posted by sweetbmxrider (Post 702018)
can you get the computer scanned? it could be quite a few different sensors to be honest.
Yep!

If you are not pressing the gas at all it may be the IAC valve.

bobb1589 05-05-2010 04:04 PM
Quote:
Originally Posted by WildBillyT (Post 702021)
Yep!

If you are not pressing the gas at all it may be the IAC valve.
I have a scanner. Nothing about the TPS or IAC.

bobb1589 05-05-2010 04:11 PM
I bought a new TPS .... wasn't that. SHould i try an IAC?

NJ Torque 05-05-2010 08:49 PM
What type of scanner fdo you have?

Monitor the voltage/readings for each sensor.

bobb1589 05-05-2010 08:52 PM
i used my multimeter to test the IAC.... it was registering around 12 and according to my manual it should be at least 40.. i replaced the IAC and it went up to like 3000rpm.. so i got real frustrated... restarted the motor and it dropped to normal i guess the pcm had to adjust

WildBillyT 05-05-2010 08:59 PM
Quote:
Originally Posted by bobb1589 (Post 702096)
i used my multimeter to test the IAC.... it was registering around 12 and according to my manual it should be at least 40.. i replaced the IAC and it went up to like 3000rpm.. so i got real frustrated... restarted the motor and it dropped to normal i guess the pcm had to adjust
The IAC has to seat itself. If the plunger is in most of the way when you install it it is letting a lot of air pass by.

bobb1589 05-06-2010 09:46 AM
Quote:
Originally Posted by WildBillyT (Post 702099)
The IAC has to seat itself. If the plunger is in most of the way when you install it it is letting a lot of air pass by.
gotcha... thanks guys... i was just panicking because i had to make it back for an exam... i ended up missing the exam but i fixed my car.... win/lose?

WildBillyT 05-06-2010 10:02 AM
Quote:
Originally Posted by bobb1589 (Post 702211)
gotcha... thanks guys... i was just panicking because i had to make it back for an exam... i ended up missing the exam but i fixed my car.... win/lose?
Lose, IMO. Unless you can make up the exam.

bobb1589 05-06-2010 09:21 PM
Quote:
Originally Posted by WildBillyT (Post 702216)
Lose, IMO. Unless you can make up the exam.
luckily there was another section of it this afternoon that i was able to make it up in


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