Polluter cam install and backfiring!
Polluter cam install and backfiring! Installed cam over the course of 4 weeks with the motor out of the car just for the heck of it. Took 4 weeks cuz of 2 jobs and school. Any way I'm 1000% sure the dots are lined up and everything. I fired the car up and it runs fine when giving it gas but when u let off the rpms drop and don't even try to idle backfires and then dies. It's on the stock tune so could the tune b the problem of could I have cracked/broke plugs or coils on the wrong cylinders? Thanks for any help!
mine didn't run for crap whenever I first started up on stock tune with MS4. I eventually did get it to idle on its own though. You may have other issues if you cannot get it to idle on it owns. I did not drill TB or mess wet adjustment screw.
Check plugs, etc.
Check plugs, etc.
If you think it's misfiring finding somebody with a scan tool to read your misfires would help a lot.
Having said that, the polluter is a pretty big cam, and it's not going to run worth a crap without a tune, especially if you're on stock heads.
Having said that, the polluter is a pretty big cam, and it's not going to run worth a crap without a tune, especially if you're on stock heads.
the PCM needs to relearn the idle w that cam . start it up n keep it running for a lil while then baby it down to idle , it should be ok then. hell my lil baby 228 cam wouldnt idle after I swapped it in. u will def need a tune w that big donkey cam tho, or it's gonna run like ****
Thanks guys!! So y'all think the backfiring is just cuz of no tune? I new I was goin to need one but I was scared that te backfiring was a serious problem!! I'm gettin a mail order tune from pcmforless when he emails me back
Trending Topics
yea it's the PCM used to the stock cam. it will smooth out a lil bit once relearned. IMO I would def recommend getting a dynotune n not a mail order tune. 9 times out of 10 ur leaving alot of hp on the table plus, I've seen cars running dangerously lean n the owner never knew it. with that big cam n a mail order tune U can pretty much put ur money on it's going to have shity street manners. if u got the extra $$ for the dynotune do it, its well worth the money
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
So then do what the man said and keep the revs up so it can try to learn. Keep it at 1500rpm with your foot for a couple minutes then back off the gas and see it that helps any! If not, then tow it to a tuner near you. Don't waste your money on a mail order tune!!
I installed the polluter a few weeks ago and mine fired right up but would NOT idle for the first 15 minutes without help. I have not had any back fire.
Firgured it out! Hand the coils on the wrong cylinders so wasn't firing correctly.! Noob mistake!! Haha anyway thing has mailorder tube and still won't idle!! Got it to idle once for bout 20 secs but that was it! I'm runnin it without trans and witout accessories! Omg will that thing wrap! I'll let y'all know if I get it runnin.
12 Second Club
Joined: Jun 2010
Posts: 12
Likes: 0
i have a polluter cam too and it was a pain in the *** to make it idlle iv worked hard with hptunner and i still need to go to a tunner to fine tune it, but the results are asome!! the idlle is great!! and tork is strong !! great cam!! worthe evrey penny
Firgured it out! Hand the coils on the wrong cylinders so wasn't firing correctly.! Noob mistake!! Haha anyway thing has mailorder tube and still won't idle!! Got it to idle once for bout 20 secs but that was it! I'm runnin it without trans and witout accessories! Omg will that thing wrap! I'll let y'all know if I get it runnin.
Firgured it out! Hand the coils on the wrong cylinders so wasn't firing correctly.! Noob mistake!! Haha anyway thing has mailorder tube and still won't idle!! Got it to idle once for bout 20 secs but that was it! I'm runnin it without trans and witout accessories! Omg will that thing wrap! I'll let y'all know if I get it runnin.
If you go romp on it with that mail order tune and that big of a cam then I wont be surprised when I see you post "Help me figure out why my motor blew up"
