Backfiring/popping under boost

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10-24-2008, 10:44 PM

#11

Hellbert

1.5 BAR

Join Date: Jul 2005

Posts: 724

Re: Backfiring/popping under boost

if ur running a stock map sensor it wont like anything over about 11 or so pounds. thats what my crx does when it spikes over about 11 pounds

10-24-2008, 11:01 PM

#12

HMTguy

Guest

Posts: n/a

Re: Backfiring/popping under boost

Quote:

Originally Posted by chris

How old are your ignition parts cap/rotor/plugs/wires?

Everything is less than 2 years old other than wires... I have another set laying around I'll give it a shot.

Quote:

Originally Posted by Hellbert

if ur running a stock map sensor it wont like anything over about 11 or so pounds. thats what my crx does when it spikes over about 11 pounds

2.5 bar

10-24-2008, 11:16 PM

#13

Hellbert

1.5 BAR

Join Date: Jul 2005

Posts: 724

Re: Backfiring/popping under boost

just a thought it wouldnt happen to be related to rpm at all would it? maybe some sort of coil breakdown or would that cause a misfire too?

10-24-2008, 11:28 PM

#14

HMTguy

Guest

Posts: n/a

Re: Backfiring/popping under boost

Nope, only on high boost. Lower than 12 psi she revs to 7000 just fine

10-25-2008, 12:37 AM

#15

Holsquirt.

0.5 BAR

Join Date: Nov 2007

Posts: 104

Re: Backfiring/popping under boost

Quote:

Originally Posted by Holsquirt.

so when you put in fresh plugs it continues?

10-25-2008, 12:39 AM

#16

HMTguy

Guest

Posts: n/a

Re: Backfiring/popping under boost

Yep

10-25-2008, 12:51 AM

#17

Holsquirt.

0.5 BAR

Join Date: Nov 2007

Posts: 104

Re: Backfiring/popping under boost

vids possible? i had this issue pretty bad, pulled great to redline at 17 or so, go to 22 and it would pop like mad, new plugs always pull smooth to 30...
i had to do 3 fixes
1) lean it out a tad up top, misifires at 10.8, pulls solid at 11.2
2) gap down plugs to .024ish
3) go *** to mouth on a drunken townie, then seafoam my ----