plug gap & missfires

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Dec 22, 2010 | 02:38 PM

#41

sabersaw30

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From: Hilliard fl.

Just for craps check for vacuum leaks.they will make the car act like it is misfiring.

Dec 22, 2010 | 02:45 PM

#42

CayenneRedV6

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From: Upstate, SC

Is there a way to do that with out just poking at everything you can think of. I had a mechanic friend who had this machine he could pump a colored smoke into the intake with but I don't exactly have that. I was careful to make sure I hooked everything back nice and tight when I put the intake back on but like I said the MAP sensor wasn't exactly fitting tightly, that's nothing new though.

Dec 22, 2010 | 04:40 PM

#43

CayenneRedV6

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From: Upstate, SC

OK these are the readings I got off the coils. I think they are in Mega Ohms. Front indicates the front of the engine. The left column is therefore the drivers side and the right column is the passenger side.

---front----

.070 .068
.065 .073
.083 .079
.069 .074

So what range are these things supposed to fall in?

I pulled the plugs back out and the plug from the cylinder the .079 was on didn't even look like it had fired at all like the rest of the plugs did.

Last edited by CayenneRedV6; Dec 22, 2010 at 04:51 PM.

Dec 22, 2010 | 06:07 PM

#44

CayenneRedV6

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From: Upstate, SC

OK here's my tune file. If y'all could take a look at it I'd greatly appreciate it.

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version009.hpt (451.3 KB, 87 views)

Dec 22, 2010 | 09:31 PM

#45

patSS/00

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From: AZ

battery/alternator?

Dec 22, 2010 | 09:49 PM

#46

CayenneRedV6

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From: Upstate, SC

Just replaced the battery and the alternator tested good.

Dec 23, 2010 | 09:55 PM

#47

needtransam

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From: Texas

I would suggest get a stock tune if u have an aftermarket tune and then go from their

Dec 24, 2010 | 08:01 PM

#48

CayenneRedV6

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From: Upstate, SC

Well I at least have it running like it was before. Pulled the plugs back out re gaped them to .040 & changed a couple of them. Its idoling & cruising like its supposed to but I haven't tested the upper RPM's yet to see if anything I did made a difference up top.