Backfire during acceleration on L98
Safety Car
Joined: Apr 2011
Posts: 3,660
Likes: 22
You MAF was "missing a few pieces"??
if that had been mentioned earlier it would have been helpful...
Thats exactly what a dead MAF does, if create outrageous backfiring and coughing and it also sets a CODE almost instantly.
A dead MAF will start out coughing horribly almost impossible to drive then when the ECM resets to OL or LHM operation it smooths out and runs normally. Sound familiar?
if that had been mentioned earlier it would have been helpful...
Thats exactly what a dead MAF does, if create outrageous backfiring and coughing and it also sets a CODE almost instantly.
A dead MAF will start out coughing horribly almost impossible to drive then when the ECM resets to OL or LHM operation it smooths out and runs normally. Sound familiar?
Thread Starter
Racer
Joined: Aug 2012
Posts: 279
Likes: 2
From: Las Vegas Nevada
I didn't notice the "missing peices" because they were basically tiny strings that my blind eyes couldn't see. My fault, but it's done now. Much smoother.
The injectors are still new, and the o-rings were in new condition when I pulled each one along with the fuel rail. I replaced the o-rings anyway, which came with my intake gasket set and I still had the backfires afterwards. I didn't hear it tonight after a pull to 60, so I'll check to see if I get it tomorrow on a nice Sunday drive......
to work.
The injectors are still new, and the o-rings were in new condition when I pulled each one along with the fuel rail. I replaced the o-rings anyway, which came with my intake gasket set and I still had the backfires afterwards. I didn't hear it tonight after a pull to 60, so I'll check to see if I get it tomorrow on a nice Sunday drive......
to work.
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Flushed the engine today, changed the oil, changed the knock sensor, and also the mass air flow because it was missing a few...... peices. No backfires after driving for 10 minutes, and it's running much smoother. Progress has been made, but I'll see of it helps in the next few days.
Thread Starter
Racer
Joined: Aug 2012
Posts: 279
Likes: 2
From: Las Vegas Nevada
Well after doing a WOT to about 50 today, and another to confirm it, the backfires are back... but not as loud, if that makes sense.
While I can't say it's all bad that I'm slowly replacing everything, funds are not unlimited and I need more ideas.
I've also been told by a few people to just drive it as is because it's honestly not driving badly. Anybody feel the same?
While I can't say it's all bad that I'm slowly replacing everything, funds are not unlimited and I need more ideas.
I've also been told by a few people to just drive it as is because it's honestly not driving badly. Anybody feel the same?
