Spark plug and wire life?
08-05-2008, 04:53 PM
#1
Pro
Thread Starter
Spark plug and wire life?
My 2k Maggie has original plug wires. The plugs were put in with the Maggie at about 30k miles. I now have 55k, so about 30k on the plugs and 55k/8yrs on the wires. I have had a miss/stumble at about 1200 rpm for a long time. It's only under light acceleration and only for a milisecond then it's fine.
Is it time for new plugs and wires or back to Dr Phil to look at the tune?
Thanks,
Is it time for new plugs and wires or back to Dr Phil to look at the tune?
Thanks,
08-06-2008, 10:11 AM
#3
Tech Contributor
I would look at the tune, but I have my own HPtuners. The plugs and wires would act up at WOT more than anything if they were bad due to the fact that cylinder pressure decreases spark. If you're paying a tuner, I would replace plugs and wires first due to the fact that it's cheap. NGK TR6 gapped at .035 and GM hotwires.
08-06-2008, 11:51 AM
#4
tunes don't just all of a sudden cause misfires. if it ran fine for a while after the tune then I would look at the easy to diagnose ignition related stuff first before you get too invasive.
So check your plugs and make sure they are gapped consistantly and to the right amount. since they are already out you might as well replace them. Ohm out your plug wires & clean the MAF sensor too.
other easy things you can do are to pull the codes, if there are any. Check that all the injector harnesses are seated correctly on the injectors. make sure the front O2 sensors are all working 100%...
So check your plugs and make sure they are gapped consistantly and to the right amount. since they are already out you might as well replace them. Ohm out your plug wires & clean the MAF sensor too.
other easy things you can do are to pull the codes, if there are any. Check that all the injector harnesses are seated correctly on the injectors. make sure the front O2 sensors are all working 100%...
08-12-2008, 12:14 AM
#6
Pro
Thread Starter
I would look at the tune, but I have my own HPtuners. The plugs and wires would act up at WOT more than anything if they were bad due to the fact that cylinder pressure decreases spark. If you're paying a tuner, I would replace plugs and wires first due to the fact that it's cheap. NGK TR6 gapped at .035 and GM hotwires.
08-12-2008, 12:55 PM
#8
Le Mans Master
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tunes don't just all of a sudden cause misfires. if it ran fine for a while after the tune then I would look at the easy to diagnose ignition related stuff first before you get too invasive.
So check your plugs and make sure they are gapped consistantly and to the right amount. since they are already out you might as well replace them. Ohm out your plug wires & clean the MAF sensor too.
other easy things you can do are to pull the codes, if there are any. Check that all the injector harnesses are seated correctly on the injectors. make sure the front O2 sensors are all working 100%...
So check your plugs and make sure they are gapped consistantly and to the right amount. since they are already out you might as well replace them. Ohm out your plug wires & clean the MAF sensor too.
other easy things you can do are to pull the codes, if there are any. Check that all the injector harnesses are seated correctly on the injectors. make sure the front O2 sensors are all working 100%...
08-12-2008, 11:34 PM
#9
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Thread Starter
08-13-2008, 01:21 AM
#10
Burning Brakes
Member Since: May 2008
Location: Mohegan Lake New York
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tunes don't just all of a sudden cause misfires. if it ran fine for a while after the tune then I would look at the easy to diagnose ignition related stuff first before you get too invasive.
So check your plugs and make sure they are gapped consistantly and to the right amount. since they are already out you might as well replace them. Ohm out your plug wires & clean the MAF sensor too.
other easy things you can do are to pull the codes, if there are any. Check that all the injector harnesses are seated correctly on the injectors. make sure the front O2 sensors are all working 100%...
So check your plugs and make sure they are gapped consistantly and to the right amount. since they are already out you might as well replace them. Ohm out your plug wires & clean the MAF sensor too.
other easy things you can do are to pull the codes, if there are any. Check that all the injector harnesses are seated correctly on the injectors. make sure the front O2 sensors are all working 100%...
anybody??/?