Question about 1986 Pontiac Firebird

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Why can't I get my car to idle right and stay alive?

I have a 1986 Pontiac Trans Am that has a fuel injected 5.0 L 305. My problem is that I can't get her to idle right and stay alive. she will stay alive when I'm driving on the highway and the rpm's are above 2000. I have replaced the intake gaskets, the governor for the tranny, the thermostat, fuel injectors, fuel filter, all the tubing, the throttle body sensor, hopefully i found all the vacuum leaks, and my dad and I just found bare wires touching and covered in grease. I've only put in less than $200 worth of parts.

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Replace timming components

Posted on May 20, 2009

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1 Answer

Why is my trans am surging at idle and low acceleration?

i'd check the air intake and vacuum pipes , ducts for any sign of leaks etc as a starting point

Jul 24, 2014 | 1986 Pontiac Firebird

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I am trying to get a 1986 nissan truck i just got to stay will start and idle a couple seconds then dies.its throttle body fuel injected

sounds like a fuel filter, or fuel pump, or could be spark related such as coil breaking down or bad igniter if so equipped

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The IAC (idle air control) maintains a target RPM, 3_26_2012_4_38_46_am.jpg

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I need to now where to find the part number for my computer

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It won't stay running when put into gear

check for engine vacuum leaks and clean the throttle body and idle speed control air bypass valve, also have the system tested for stored trouble codes, below is how to do that test manually. go to the link.

Aug 08, 2009 | 1989 Pontiac Firebird

1 Answer

1986 Pontiac 6000 STE Idels Rough

Look at your fuel injection system. There are certain companies that will clean your fuel injecton for you for about $125-145.00.
They will attach a bottle of cleaning solution over the engine and will keep the engine running for about 1-hour while the cleaning fluid courses through the engine. This cleaning system was developed by Snap On back in the early 1990's.
Hopefully, this will work.
Most Sincerely, Kristopher

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1 Answer

My car does not like to start/ stay running

Check the coolant temperature sensor. The thick black smoke is an indication it is flooding or getting to much fuel. The CTS is critical for fuel metering on start up.

Dec 04, 2008 | 1986 Pontiac Firebird

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