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Posted on May 25, 2010
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92 gmc s-15 jimmy 4.3 z vin. dies when in drive at idle. It acts like it is running rich. Injectors and oxygen sensor are new.

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  • Expert 212 Answers
  • Posted on May 25, 2010
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Joined: Jan 26, 2010
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Check the IAC valve ( idle air control ) maybe dirty and sticking. Clean with intake cleaner or replace IAC valve.

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0helpful
1answer

My truck smeels of gas when starting and idling and runs a little rough with a miss almost, no gas leak just seems like its getting to much fuel what do i do?

engine is running too rich.

probably a sensor. Check the Oxygen sensor, throttle position sensor and fuel injectors
after that check fuel pump.
0helpful
1answer

Car has rough idle in drive or reverse with foot on brake and will occasionally act up while in park

Fuel Trim below Zero- your taking away fuel,
above zero your adding fuel

Should be plus or minus 2 or 3

You may have a rich condition from leaking injectors,
thus the -20

Mail them away to Ultra Sonic Cleaning

Check Fuel Pressure
0helpful
1answer

I have a '92 GMC Jimmy 4X4- 4.3 Vin code "Z",that

you should be able check fuel pressure at shredder valve and turn key on and off 3 times should be good enough, id check to make sure you have good oil pressure ,then make sure oil pressure switch isn't at fault
0helpful
1answer

My 1992 Loyale recently started acting up. The normal engine idle after warming up went from its usual 900 rpm to around 2200 rpm. The engine runs a little rough with some hesitation occasionly and is...

no
the next step is to have the fault codes read
indicates a problem idle sensor
running rich is heated oxygen sensor in the exhaust manifold or problem dirty injectors causing a problem in the air /fuel mixture settings
0helpful
1answer

95 dakota dies when warmed up

yes it can but you may have a coolant temp sensor acting up which causes the computer to open the injectors to much which can also cause this 02 sensor code. when it stalls do u have spark and fuel pressure.
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