General engine questions/issues that aren't specific to the other categories
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By jrhdominos
#202144 My car has been acting funny for a while now, I finally got to a computer so here goes...what happens is when I mash the accelerator to the floor, 1st gear is just fine , but second gear it acts like its struggling to accelerate, then it never fails when it hits 4000 rpms its like it hits vtec (but its a d15b7) then it pulls like it should. 3rd gear and up it seems fine, anyway I figured ya'll would be able to help me out. Also the rear of my car is what seems like "smoke buildup" on my bumper but really its all over the rear. Im thinking maybe its an o2 sensor. any advice would be helpful.
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By suspendedHatch
#202156 Exhaust deposits on your rear bumper almost always indicate a rich condition. Could be the O2 if you're lucky but it could also be a stuck injector. Other fuel components need to be checked too, like the fpr.
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By jrhdominos
#202207 thanks man I appreciate it... Ill check on that and get back with yall