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Tractor Talk Discussion Forum

O/T '92 Dodge Caravan ignition update

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MeAnthony

12-09-2006 19:04:08




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Sometimes it gets power to the coil pack(distributorless ignition) and will run; sometimes it does not get power.

Crank sensor, cam sensor and spark plugs are new.

When it does start, it will run fine for the first minute or two, then starts to miss. It does have a rich fuel smell at this point.

Any suggestions as to what else might be failing? Doesn't one of the temperature semsors give the computer feedback for the fuel settings?
Is it possible the main engine computer(there are two under the hood; one on the firewall and one by the battery. What are the functions of these?)could be bad? Is there a testing procedure for this?

Any suggestions will be considered, incuding complete destruction of this vehicle.

Thank you,
Anthony

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marlowe

12-10-2006 13:09:52




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 Re: O/T '92 Dodge Caravan ignition update in reply to MeAnthony, 12-09-2006 19:04:08  
fuel pump. NO fuel prssure you will have no spark



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Dale L

12-10-2006 06:22:17




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 Re: O/T '92 Dodge Caravan ignition update in reply to MeAnthony, 12-09-2006 19:04:08  
My wife has a 93 grand vouager that the engine missed all the time. Our neighbor is a chryler mechanic that we drive by every day. One day he called up and told us to change the plug wire's He could tell what was wrong just by listening to it as it drove by. It might not be the problem you have but it's worth a try. I guess it was a common problem.



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Vern-MI

12-10-2006 05:55:12




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 Re: O/T '92 Dodge Caravan ignition update in reply to MeAnthony, 12-09-2006 19:04:08  
I realize the old OBD codes weren't much to go on but is it throwing any DTC's? You are right about the temp sensor controlling the fuel enrichment. Have the Oxygen sensors been replaced?



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MeAnthony

12-10-2006 07:45:35




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 Re: O/T '92 Dodge Caravan ignition update in reply to Vern-MI, 12-10-2006 05:55:12  
Yes the oxygen sensor's been replaced, and it is only giving a code 12(something about standby power to PCM memory lost). Does this help?

Thanks,
Anthony



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