Is this normal? The light breaks up and goes slow on #1, but not 6. They are all different. Some wires the light blinks very fast and consistent. There is a light miss/popping sound at idle (idle is still correct speed). Also I am getting missing at full boost for a while when it spool it up quickly, then it breaks free and runs like the wind. I don't expect a perfect idle with my open exhaust and MAFT setup, but do you think the uneven blinking is a problem? Coil packs bad?
timing light flashes different rates on different plug wires
- Thread starter suprafly
- Start date
Are you sure the gun isn't just making a poor connection with the wire? It seems to be that if it was not getting spark intermittantly to all cylinders but 1 there would be more then a light miss or pop.
Missing at full boost for me was plugs that were too old and their gap had grown to much higher then acceptable levels. So check that out 1st as it hopefully is something minor.
Missing at full boost for me was plugs that were too old and their gap had grown to much higher then acceptable levels. So check that out 1st as it hopefully is something minor.
High resistance in wire will change the reading. That c clamp is a magnetic pickup. It reads the magnetic field opening and collapsing and generates a signal from that.
You need to have the clamp as close to the head as possible. And there is no need to put it on another cylinder but cylinder one. Or the timing event will appear wrong.
You need to have the clamp as close to the head as possible. And there is no need to put it on another cylinder but cylinder one. Or the timing event will appear wrong.
i wasn't even trying time it, I was simply checking the firing pulses of the different cylinders to investigate my miss. I looked further into it and realized the left coils all blink at a slow, unsteady rate and the right ones blink rapidly perfect. and new plugs/fuel filter/all that crap. Surprisingly the cars runs alright except for full boost and the idle popping
I've tried tracking down a miss the same way too. I had too much problems with the timing light picking up a constant signal so I gave up. You definetely get a bad reading if you don't hook the light up right next to the coilpack. This makes it really hard. Anyone have better plan for finding a random misfire?
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