Help with tune (Random mulitple misfire with big cam)

[ssheets]

The one thing I can't tune out is "Random multiple misfires" I'm running a lot of cam and I think I just need to tune out the lower rpm checks. With my Predator I don't think I can do this though? Can anyone change this parameter if I email them my tune?

Any other advice??

My cam is not huge, but not small it's 232/234 duration and .600" lift with a 112 LSA.

[06MonteSS]

if you're runnin' a cam like that, you really need to get a custom dyno tune in order to get it all setup correctly...

[ssheets]

if you're runnin' a cam like that, you really need to get a custom dyno tune in order to get it all setup correctly...

I agree...I'm just having a hard time finding anyone around here. That's why I'm working with Jesse at Wait4me, but it's a long distance tuning relationship so these gremlins are hard to fix. His PCM doesn't give me any misfire codes, but I get more IAC problems.

There's a shop about 60 miles from here that is a Diablo tuner, but I haven't heard great things about them. They want about $700 to tune the car, which includes some dyno time. For that kind of money I could buy tuning software and a wideband so I'm not sure where to spend my money?

[mikel]

Email me your extra tune from the Predator and I'll have the P0300 turned off.

Thanks

[ssheets]

Email me your extra tune from the Predator and I'll have the P0300 turned off.

Thanks

Thanks, I'm running my mail order PCM now from Wait4me...now that I fixed my vacuum leak!

I'll probably email you the tune anyway though so I have a back up tune that will run the engine without SES codes. Just in case I want to send the Wait4me box back for tweaking.

[tnt3]

Had same problem Randum mulitple misfire PO300 adn it was the os senser of left front side. cost $436.90 not sure if this is the issue.