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Topic: stalling engine sounds sick (Read 9339 times) previous topic - next topic

stalling engine sounds sick

Reply #15 –
KOEO code 83---------EGR control solenoid resistance--out of specs
Both control and vent solenoids should be between 30 and 70 OHMS.

stalling engine sounds sick

Reply #16 –
KOEO code 83..EGR control solenoid resistance out of specs.
Both EGR control and vent solenoids should measure between 30 and 70 OHMS.

stalling engine sounds sick

Reply #17 –
can you tell me where this is so i can check it

stalling engine sounds sick

Reply #18 –
This picture is an 84 3.8L. The 86 EVTM shows them in a different order but the wire colors are the same.
The EGR control will have the yellow wire and the EGR vent will have the green wire. The red wires are keyed 12v power.
The solenoids are under the radiator expansion tank.

stalling engine sounds sick

Reply #19 –
ok thats great will look at it in the morning as its 0120am here and its bed time.

stalling engine sounds sick

Reply #20 –
If the EGR valve was stuck open you would get a KOEO 3x ( I think 31) code.
The KOER test tries to open the valve and it fails, giving the 34 code.
I don't think the EGR problem is causing the engine stalling.
Can you pinpoint the air rushing noise you hear? Is it pulsing or a steady noise? You may have a large vacuum leak.

stalling engine sounds sick

Reply #21 –
just got the avo out on the solenoids vent 40 ohms,control showed nothing just dead.is code 34 generated by this fault as there will be no vaspooge to open the egr?.also the air rushing sound is from the viscous fan. it comes and goes.

stalling engine sounds sick

Reply #22 –
Quote from: mr glee;446798
is code 34 generated by this fault as there will be no vaspooge to open the egr?
Yes

stalling engine sounds sick

Reply #23 –
It sounds like your fan is over-reving. Fan clutch problem.

The engine idle is controlled by the ISC (idle speed control) motor.
You need to check if the ISC is working.
Warm the car up until it will idle. Remove the air cleaner. Check that the throttle linkage pad is resting on the ISC motor plunger.
Watch the plunger to see if it ever moves.
Turn the engine off. Put the ignition in run with out starting (KOEO)
Notice where the ISC plunger is. Install the self test (KOEO) jumper.
The plunger should move to the max retracted position.

The following diagram shows the adjustment procedure for the ISC motor. First you need to determine if the EEC can move the plunger.

stalling engine sounds sick

Reply #24 –
ok thanks for that but it works fine had code 12 to start with on koer as it was out of adjustment.found the parts i need will take about 10 days to get here.let you know how i got on.

stalling engine sounds sick

Reply #25 –
ok new parts fitted both test show pass but still running sick..what next?

stalling engine sounds sick

Reply #26 –
ok new parts fitted but still running bad as before koeo pass.koer showed 41&91 on second run 42&92 running lean then rich where do i look now?

stalling engine sounds sick

Reply #27 –
just done three more now showing 11 pass but still running bad

stalling engine sounds sick

Reply #28 –
Check the timing and the fuel pressure.

stalling engine sounds sick

Reply #29 –
ing timing ok. i dont have the tool (t80l-9974-a) to do a test is there a aftermarket kit i can use may be able to get one local or do you know the size thread for the test valve? also list any other things i should look at as the time difference is a real pain by time you guys are on its gone midnight here.