Cant pass 70 mph!!!!!!
Thread Starter
Teching In
Joined: Oct 2011
Posts: 19
Likes: 0
From: san jose ca.
Cant pass 70 mph!!!!!! soo yesterday i was driving my car on the freeway tried to speed up to pass a car up. when i hit 70 mph my car kinda like bogged and slowed down. i tried it again and same thing. i had a bald tire in the rear right soo i changed it. and still same thing. when i hit 70 mph my low traction light goes on and slows me down. PLEASSEEEE HELP anybody had this problem before? any idea what it mite be? thanks guys would be appreciated.
Thread Starter
Teching In
Joined: Oct 2011
Posts: 19
Likes: 0
From: san jose ca.
Haha 70 mph fast enought. Thats what my mom said.
But mmm no I didnt have it tuned maybe previous owner but ive has,a for a few months now and it just started doing this. But when I take traction control off it passes 70????
But mmm no I didnt have it tuned maybe previous owner but ive has,a for a few months now and it just started doing this. But when I take traction control off it passes 70????
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TECH Enthusiast
Joined: Apr 2010
Posts: 513
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I'm with the other guys in asking, "has anyone touched the tune at anytime for any reason?" I don't see why it would do that for no reason, and only at 70mph if the limiter wasn't messed with.
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- The bogging when you hit the accelerator is classic dirty or bad MAF. Exactly what code were you getting?
- The traction control system doesn't work at those speeds, so the low trac light it is telling you that the ABS/TCS system is detecting a wheel slip. This could be a number of issues from a tire mismatch to a sticking brake to a bad wheel sensor. What are the sizes and types of your four tires?
Thread Starter
Teching In
Joined: Oct 2011
Posts: 19
Likes: 0
From: san jose ca.
My car is auto and wen I step on it it bogs also. And my two back tires are 275/45/17 but they are diff brand? My two front are 235/50/17 same brand. Will the diff tire brands cause that? Thanks for the help guys
TECH Apprentice
Joined: Nov 2011
Posts: 337
Likes: 1
From: Murray, KY
I'd clean the MAF first thing and see if that makes a difference, if no try finding a friend or another MAF you can borrow for testing purposes, if no change, I'd look deeper into tire sizes and such.
One step at a time. Resolve the MAF issue and go from there. I was thinking along the lines of fuel delivery or an exhaust restriction but you've got that code, so deal with that first...
Last edited by myk; Nov 29, 2011 at 01:13 AM.
What was the exact MAF code you were getting? Depending on the code, all the MAF cleaner in the world may not resolve it.
Banned
Joined: Aug 2011
Posts: 1,127
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From: IL
This happened to two members on here with two different solutions. Both had your problem. The one was the throttle body was getting caught where it wouldnt open and he found where the cable was getting caught. The other was he just needed a new maf.
Launching!
Joined: Aug 2011
Posts: 222
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From: Memphis
