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idle speed

 
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86toy
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Joined: 20 Jan 2010
Posts: 61
Location: tacoma

1986 Pontiac Trans Am
PostPosted: Thu Feb 04, 2010 7:40 pm    Post subject: idle speed Reply with quote
ive followed all the steps to reset idle and still it wont stay, even warm it goes up to 1,500 when started then slowly goes down to about 650 in gear.800 when cold.if i rest it will idle properly until i drive it to 40 mph to reset iac then shut off and does idle bullshit all over again. any ideas? is there a cold sart valve that could be f***ed up? Confused
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86 t/a 305 tpi 700r4 3.73 possi 4 wheel disc
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blue89
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Joined: 23 May 2006
Posts: 3482
Location: Bellingham/Eugene

1986 Chevrolet Camaro RS
PostPosted: Sat Feb 06, 2010 11:18 pm    Post subject: Reply with quote
Does it still do it when the IAC is unplugged?
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86 RS - 7.4L V8 SOLD
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Twilightoptics
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Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA

1987 Chevrolet Camaro IROC-Z
PostPosted: Sun Feb 07, 2010 8:45 am    Post subject: Reply with quote
Got a 91 TBI in the shop. Idles a little above 1000 and slowely comes back down to aboiut 700.

Normal.
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86toy
Member


Joined: 20 Jan 2010
Posts: 61
Location: tacoma

1986 Pontiac Trans Am
PostPosted: Sun Feb 07, 2010 9:35 am    Post subject: Reply with quote
with iac unplugged it idles at 500 rpm. it goes to like 1500 when statred then down to like 700 hot or cold.
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Twilightoptics
Hardcore (12sec Club)


Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA

1987 Chevrolet Camaro IROC-Z
PostPosted: Sun Feb 07, 2010 9:41 am    Post subject: Reply with quote
That sounds pretty normal.
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86toy
Member


Joined: 20 Jan 2010
Posts: 61
Location: tacoma

1986 Pontiac Trans Am
PostPosted: Sun Feb 07, 2010 9:43 am    Post subject: Reply with quote
hmm okay just seems high to me im used to carb cars i guess lol
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245/45/17 restoring
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