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  #1  
Old 03-24-2011, 05:31 PM
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Question Need Advice on DTC P1298

Have a 1994.5 with a slight mis at 1200 rpm or less.
336,000 km (208,000 miles)
No exhaust smoke after 3 or 4 seconds when cold, no smoke when warm.
Starts and drives fine, except the slight mis idling and engaging the clutch from stop.
Autoenginuity displays
DTC tab = P1111 System Pass
KOEO tab = P1298 IDM failure
KOER tab = P1298 IDM failure
Injector Buzz = P1298 IDM failure
Contribution Test = P0269 -Cylinder 3 contribution/balance fault
So is the IDM going bad or is the P0269 fooling the PCM into beliving the IDM is bad?
Do i have 2 problems?
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Old 03-26-2011, 08:02 PM
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Nope bad IDM Take it out and shake it to see if there is water present. When you get a IDM code it means IDM nothing else I recomend One from Swamps
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Old 03-26-2011, 08:47 PM
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Would you replace the idm before changing #3 injector? Could the injector be OK and just the idm goofy on #3
Thanks
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Old 03-27-2011, 09:04 AM
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Yes sir If you get a IDM Code IT is always the IDM. You might have an issue with the injector but you must fix the problem with the IDM first.
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Old 04-02-2011, 09:01 PM
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Have a rebuilt IDM arriving next week.
Could a tired dual mass flywheel cause a failed Contribution Test = P0269?
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Old 04-06-2011, 07:39 PM
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Exclamation

Installed the rebuilt IDM from Auto Computer Exchange, today, replacing the old 100A with a 110. This solved the DTC P1298.
Did not notice any change in motor or drivability.
AE still displays Contribution Test = P0269 - Cylinder 3 contribution/balance fault.
So next on the list is changing #3 injector.
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Old 04-10-2011, 06:29 PM
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I have a injector if you need it.
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Old 04-10-2011, 06:34 PM
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do you still have a DMFW??
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Old 04-11-2011, 03:40 AM
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I'm new... What is a DFMW?
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Old 04-11-2011, 06:40 AM
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Dual mass flywheel?
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