When to replace o2 sensors

JARblue · 09-09-2016, 09:55 AM

Quote:

Originally Posted by Z_ealot

Cleaned those when i first got the car, inspected them just this last weekend and not very much buildup on them. Only things i can think of that might cause the hesitation are a vacuum leak, dirty fuel injectors or possibly a faulty abs sensor. I've looked for a vacuum leak before and couldnt find anything, but that doesnt mean there isn't one, im running fuel injector cleaner through the gas tank right now so i suppose we'll see if that helps and the only reason i mention anything about the abs sensors is because when i have vdc turned on i get a wheel slip light along with the slight hesitation. Car runs perfect otherwise, just going crazy trying to track down the cause of the hesitation

Did you check the back side of the butterfly valve on the throttle bodies? I've cleaned mine twice in 80K miles - the first time I didn't think they were even that dirty until I actually removed them and looked at the back side

Also, VDC will brake for you when wheel slip is detected, and it will cut throttle if you continue trying to accelerate during wheel slip. Even if you turn VDC off, the ABLS system will still pulsate the rear brakes when wheel slip is detected, although you can overpower ABLS with throttle.

Lastly, I assume this hesitation is new to you? Because the throttle lag on the stock tune is horrid. A tune will fix that right up if you haven't already.

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