About a year ago i was on the highway & hit 4th at 15psi and my car started to backfire a little bit. So i changed the plugs and wires from stock to Ngk plugs and msd wires and it went away. Now 2 days ago i went to do a hard pull in 3rd and the car did the same thing kinda, i would have the car under boost in 3rd and the car would start to backfire and while under boost it felt like the boost was cutting off so i let off the gas. Anybody else have this happen? Any idea whats going on here? Replace the plugs again?
Ude Lose
He just replaced them.slow4dr said:
If your plugs are still good, which they should be, your car is probably cutting timing. I suggest this:
http://neons.org/forums/viewtopic.php?t=201360
oh yeah i am going to replace the NGK's tonight in about an hour with new stock champions, gapped at .38 and see what happens.
Keep us posted. I usually change my plugs every 5K miles or so.Ude Lose said:
plastick said:
Actually, he said he replaced them a year ago.
Ok i replaced the Ngk's with a new set of champions and the problem went away. The car pulls tstrong under full boost just like it used too.
I too have had this problem off and on, Mine was best solved with MSD wires but for some reson is back even worse after instaling a agp WGA
sneakyneon said:
You also need to get new plugs. The part throttle boost will make the plug problem much more apparent.
I am having this same problem. I replaced my plugs and wires and the problem went away and came back about 1000 miles later. I've tried to regap the plugs...reset the pcm...and I have turned by boost down to 10psi and I still get this crap. I experience it when slowly adding throttle so that could be a possible part throttle boost problem, but I also experience it when I am at WOT. It will spit and sputter and backfire several times no matter what gear I am in, or what RPM I mashed on the gas at. I have tried punching it in second gear at 40mph so my turbo was spooled up and the fuel was flowing good. It *still* backfired then. I am at a loss as to what the problem is with my car.
I have a new coil and crane firewires on order to see if that fixes it. Could it possibly be a problem with one of my injectors? I will be installing my AVC-R EBC pretty soon so I can control the boost a bit better, but I'm not sure how well this will cure the backfire shits.
Any ideas guys?
-SgtSRT
I have a new coil and crane firewires on order to see if that fixes it. Could it possibly be a problem with one of my injectors? I will be installing my AVC-R EBC pretty soon so I can control the boost a bit better, but I'm not sure how well this will cure the backfire shits.
Any ideas guys?
-SgtSRT
If you do plugs, then wires later, it can migrate, ask me how I know
I wasted a new set of NGKs to find this out Do both plugs and wires together.
I wasted a new set of NGKs to find this out Do both plugs and wires together.-
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