Weird bog at WOT??

[dalatinromeo]

Sorry I know this has been discussed plenty of times but I need to get an idea.

So here is the problem. When I try to go WOT, around 3800 RPM or when I hit full boost the car will bog for a few hundred rpms but then the bog will stop and the car will keep going. Out of boost and low boost the car drives normal and great.

When I'm not in boost the car drives normal its just when I go WOT the car bogs suddenly; then it will stop and the car will continue to redline.

I thought it would be a boost leak, but won't it not let me boost after it bogged. I thought maybe plugs or wires, but if I was misfiring won't I get a check engine light or it won't let me continue to redline??

I thought maybe its my turbo failing. But I want to pin point the problem??

 

[mattdev]

A similar thing happened to me. The problem was definatly spark plugs. It would bog whenever I started to build boost and would not let me since it was misfiring. I never got a CEL from it.

You also might want to check your front o2 sensor or check for pre o2 exhaust leaks. If either was bad, you would be running extremely rich. Again, also happened to me...

 

[Hiitman]

I'd say that your running rich except you seem to be running stock injectors. Get a wideband before you do anything else. Your going to need it to tune even dsmlink. Other then that, log a run and check your front o2 voltage.

 

[dalatinromeo]

Just ordered some plugs and wires since its been a while since I got them. What color should I be looking to see if I was running to lean/rich.

I heard you can tell by looking at the plugs whether you were running to rich or lean. But I don't know what the colors are.

I will try and get a log today or tomorrow get back to ya after a little hunting??

 

[GRAVEDIGGER]

Normal plugs should be brown to grayish-tan in color and slight electrode wear. If you are running too rich the plugs will look black or sooty. If you are running too lean the electrode will look white or blistered and/or the electrode may be eroded.

 

[dalatinromeo]

Thanks plugs will be here Monday so i will be installing them Monday night. I will ge tback to you guys Monday night thanks.

 

[dalatinromeo]

Thanks guys. It was the plugs and wires. Changed them last night no more bog. The plugs were black and sooty like gravedigger mention, so I guess I'm running a bit rich.

Thanks alot guys!!!!!