LOW IDLE
04-23-2018, 10:53 AM
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LOW IDLE
Okay so i clean my IAC and Throttle body to try and fix my low idle (300rpms) didnt help. Did spark plugs and a fuel filter. Neither helped, replaced the IAC Valve wit a used one, idles the same. Yes im bleeding the coolant. Only problem is now its idling at 100 when warm and will stall out. i dont throw a code for the IAC so i have no idea now. Plug wires? Dizzy? what should i do? please help
04-23-2018, 11:46 AM
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Re: LOW IDLE
What about advancing the dizzy? But I think in order to do so other than loosening bolts I think in book it says you have to jump a connector. But could be the TB.
04-23-2018, 01:49 PM
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Re: LOW IDLE
If you're timing is way too far one way or the other it will cause low idle. Also just a thought, its possible someone messed with the throttle body idle screw. Before you mess with the idle screw research how to do it on google.
04-23-2018, 08:20 PM
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Re: LOW IDLE
I set the timing belt myself when i did my headgasket, i screwed around with the little screw on the throttle body today but the idle never changed. I dont throw a IACV code, just a misfire is cylinder 3 and crankshaft pos sensor, anychance those would affect it? also shoukd i test for a vacuum leak?
04-24-2018, 08:52 PM
#7
Re: LOW IDLE
I would fix the crankshaft position sensor problem first since this may be the idle issue. The ecu depends on the crankshaft position sensor to know what do with air/fuel and ignition given the location of each cylinder. If it does not know crank position then it does not know what to do. If the idle issue continues I would check the TPS making sure its near/at .5v and idle and close to 5v at Wide open throttle(done on the signal wire) The misfire on cylinder 3 can be an injector issue,or a spark plug issue or a spark plug wire or a compression problem but it might not necessarily be cylinder 3. A scope would help greatly, but you can do a cylinder drop test. without a scope or fuel injector tester and fuel pressure gauge the only thing one can do is ohm the injector which is good when an injector is shorted but not for restricted or stuck open injectors
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