Car bucking when hitting 4k WOT
3.0 BAR
Joined: Jun 2003
Posts: 3,974
Re: Car bucking when hitting 4k WOT
Originally Posted by Shift_Spool
http://www.sparkplugs.com/more_info....15733&pid=2530
Do these seem fine? Any better websites to get them at? And how much do spark plug gap tools run? Thanks and sorry for all these questions. I just need to make sure this is right.
Do these seem fine? Any better websites to get them at? And how much do spark plug gap tools run? Thanks and sorry for all these questions. I just need to make sure this is right.
go with ZFR7F-11 which are a heat range colder and only $2.44 each at ngk.com
1.0 BAR
Joined: Apr 2005
Posts: 375
Re: Car bucking when hitting 4k WOT
No could be a full tank.
But stuff like fuel pump not keeping up. Injector issues, cloged filter etc.
My reasoning is its only hapening at WOT. Fuel stravation and WOT tend to go hand in hand.
But hey be an optomist and hope its just the plugs.
But stuff like fuel pump not keeping up. Injector issues, cloged filter etc.
My reasoning is its only hapening at WOT. Fuel stravation and WOT tend to go hand in hand.
But hey be an optomist and hope its just the plugs.
1.0 BAR
Joined: Apr 2003
Posts: 467
Re: Car bucking when hitting 4k WOT
Hey I'm the guy working on tuning this car. Its acting really strange. Its bucking even when the afr reads fine...like right around 11-12:1. Thats a good suggestion about the plugs though i didn't think about that. Whats really strange to me though is that one map i tried worked great on his car. It pulled hard fairly strong all the way to redline. We did a number of pulls with it. Then i went back and tried tuning it a little and again it was back to the bucking. Then i put the original map back in(the one that worked perfect) and it was bucking 
. From there on out i couldn't put a map in that wouldn't do this. I even tried somebody elses tuned h22 boost map on his car and it did the same thing. To me it seems like some kind of wiring problem...like maybe the map signal is reading funny or something. After all this we took a look at his wiring harness and it looked like there was some weird stuff going on under there where the afc had been wired. I'm not much of a wiring guy though so i wasn't going to screw around with it.
. From there on out i couldn't put a map in that wouldn't do this. I even tried somebody elses tuned h22 boost map on his car and it did the same thing. To me it seems like some kind of wiring problem...like maybe the map signal is reading funny or something. After all this we took a look at his wiring harness and it looked like there was some weird stuff going on under there where the afc had been wired. I'm not much of a wiring guy though so i wasn't going to screw around with it.
Thread Starter
0.5 BAR
Joined: Dec 2004
Posts: 62
Re: Car bucking when hitting 4k WOT
Originally Posted by chinoy
No could be a full tank.
But stuff like fuel pump not keeping up. Injector issues, cloged filter etc.
My reasoning is its only hapening at WOT. Fuel stravation and WOT tend to go hand in hand.
But hey be an optomist and hope its just the plugs.
But stuff like fuel pump not keeping up. Injector issues, cloged filter etc.
My reasoning is its only hapening at WOT. Fuel stravation and WOT tend to go hand in hand.
But hey be an optomist and hope its just the plugs.
And I checked out the dizzy about a month ago and it checked out fine. I can check it again for any loose bolts but I highly doubt it.
