Random Misfire P0300
#11
#12
CF Active Member
Thread Starter
so the new distributor solved the P0304 you were getting, and now you have a white hot spark?
You could try a timing light to see if the advance is in fact that low, or if it is being misreported.
Make sure the ignition module has a good ground. It could also have an intermittent short.
Abnormal HO2S readings will cause misfire.
You could try a timing light to see if the advance is in fact that low, or if it is being misreported.
Make sure the ignition module has a good ground. It could also have an intermittent short.
Abnormal HO2S readings will cause misfire.
Last edited by Ron6519; March 31st, 2020 at 8:32 PM.
#13
why is it done? Did you solve the problem?
#14
CF Active Member
Thread Starter
I didn't say I installed a new distributor and it fixed, P0304. I said the code was always a P)300 and once it came up as a P0304. Then I checked the wires and found the spark to be orange, not white. I interpreted that a weak spark and starting tracing electrical issues. It was then I found the advance drop signal.
#15
I see. You're leading us down the garden path instead of starting with "I have a weak spark."
End your misery (and ours) and take the thing to a mechanic, Ron.
End your misery (and ours) and take the thing to a mechanic, Ron.
#16
CF Active Member
Thread Starter
You can feel free to stay away as well. You don't seem to be able to read a post and understand it.
The #9 post stated a spark issue. It also stated that the van was running fine. Good acceleration smooth idle and no problems starting. If it was a timing issue, the engine would have significant running issues. It doesn't. So a timing light would be of no diagnostic help. It's a signal issue.
I don't think you have a diagnostic bent, so like I said before. Go help other people .
Last edited by Ron6519; April 2nd, 2020 at 7:10 AM.
#17
Diagnostics is starting with the obvious things first, not chasing spectres.
You are are right, I can't read your mixed up posts.
The light gets triggered by your signal, but you know better than everyone else, and you're smarter than a mechanic, so you should have this thing licked in no time!.
Good luck. (You'll need it.)
You are are right, I can't read your mixed up posts.
The light gets triggered by your signal, but you know better than everyone else, and you're smarter than a mechanic, so you should have this thing licked in no time!.
Good luck. (You'll need it.)
#18
CF Active Member
Thread Starter
Situation repaired. Turns out it was an incompetent repair by my ex mechanic. He replaced the cam sensor connector and a 5 inch pigtail but used an incorrect connector which loosened up two out of three connections. The ground wire was losing contact and setting off the misfire code. I removed the clown wiring and soldered the wires together. No more codes.
#19
CF Monarch
Situation repaired. Turns out it was an incompetent repair by my ex mechanic. He replaced the cam sensor connector and a 5 inch pigtail but used an incorrect connector which loosened up two out of three connections. The ground wire was losing contact and setting off the misfire code. I removed the clown wiring and soldered the wires together. No more codes.
#20
CF Active Member
Thread Starter
The observation that the repair was incompetent was a factual one. If you can't tell the difference between a simple observation and, "attitude", you should confine your online activities to the Sesame Street website.(That was , "attitude" See the difference?)
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Last edited by Ron6519; July 10th, 2020 at 10:44 AM.