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NEED HELP idle problem

  • Thread starter Thread starter 1994Vib.RedGT
  • Start date Start date Apr 7, 2005

1994Vib.RedGT

Member
Aug 19, 2004
585
0
16
Denver, CO
Apr 7, 2005
#1
  • Apr 7, 2005
  • #1
i have posted this before but didnt get too many answers, so i will try again.

The past few days here the temps have been above 75 degrees and all of a sudden since the temp increased my idle has shot way up to about 1800 rpms. additionally when i shift, the rpms jump to 3000 when my foot is on the clutch!!!! i am thinking it is the incoming (or idle) air temp. sensor, but i want some expert opinions before i spend the money on it. also i tried the mechanic about code checking, but he said his computer would not pick it up unless the check engine light was on, so no dice there. please help me
 

dstanggt50

Founding Member
Sep 13, 2000
1,316
0
0
Woodinville, WA
Apr 7, 2005
#2
  • Apr 7, 2005
  • #2
If the idle is high in nuetral, maybe try unplugging the tps, if the idle returns back down, probably tps related(how my 87 acted, idle would go back down after tps unplugged, bought new one, fixed it). Other than that, maybe see if you have any codes. I know a dirty or faulty iac will cause an eratic idle, but I don't know about just a high idle
 

1994Vib.RedGT

Member
Aug 19, 2004
585
0
16
Denver, CO
Apr 8, 2005
#3
  • Apr 8, 2005
  • #3
bump
 

94-302-vert

Active Member
Aug 16, 2004
1,947
2
36
NE CT
Apr 8, 2005
#4
  • Apr 8, 2005
  • #4
Bad fuel injector?
 
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