big problems
Thread Starter
Staging Lane
Joined: Jul 2007
Posts: 88
Likes: 0
big problems alright i have an 06 and the check engine light came on about a month ago and it came back as the mass air flow sensor. well i got a new one from the dealer and it idles like crap if i can even keep it running. i put the old sensor back on runs fine the first time i start it up, but after i turn it off then crank it up again it starts running like crap again. it lopes like i have a huge cam in it, which i dont and if i can get it moving it shows on the dash saying reduced performance and i can only go 35 mph. this also turns my traction control off for some reason. if anyone has an idea of what the hell is wrong with my car please let me know. im about ready to give up on it.
sounds like you have more codes than just a p0101, the mass air flow code was set becuase of whatever other code/codes were set, im guessing you have codes pertaining to the app sensor and the throttle body also
Thread Starter
Staging Lane
Joined: Jul 2007
Posts: 88
Likes: 0
i really hope it has nothing to do with the throttle bodycause if that the case I have a feeling its gonna get expensive. I mean I've kept my air filter clean so I'm hoping that's not what it is. Could I just get some throttle body cleaner and it might fix the problem?
Thread Starter
Staging Lane
Joined: Jul 2007
Posts: 88
Likes: 0
ok im not sure about this but i didnt know if this is why the new mass air flow sensors are not working. i had my car dyno tuned like 2 years ago. would that have anything to do with the sensors not working properly on a tuned car?
may sound crazy, but check your cats. Just worked on a friends 02 Silverado which was doing nearly the same thing and had the same code, which doesn't necessarly mean the MAF is bad but the airflow readings do not match engine performance. His truck also had a P0300 multiple missfire code as well. When I dropped the Y pipe the truck ran perfectly, turned out the left cat was totally plugged.
Re'
Re'
Thread Starter
Staging Lane
Joined: Jul 2007
Posts: 88
Likes: 0
yea i tried that 2. i actually tried 2 from advanced and then i talked to a mechanic about it he said with electrical stuff and sensors get them from the manufacture, so i went and got one from a dealer and still didnt work.
Trending Topics
Thread Starter
Staging Lane
Joined: Jul 2007
Posts: 88
Likes: 0
may sound crazy, but check your cats. Just worked on a friends 02 Silverado which was doing nearly the same thing and had the same code, which doesn't necessarly mean the MAF is bad but the airflow readings do not match engine performance. His truck also had a P0300 multiple missfire code as well. When I dropped the Y pipe the truck ran perfectly, turned out the left cat was totally plugged.
Re'
Re'
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Re'
Thread Starter
Staging Lane
Joined: Jul 2007
Posts: 88
Likes: 0
thanks im taking it to a mechanic shop tomorrow and i told them whats been happening. they cant tell me anything without looking at it first but from what ive heard im guessing to just replace the o2s and i have a new MAS so i might as well put that on 2 and im getting it re-tuned
TECH Regular
Joined: Aug 2010
Posts: 462
Likes: 0
From: houston, texas
when the car is running (good or bad) TAP on the pcm with the handle on a screwdriver or something similar. see if it changes the way the car is running. my 02 SOM had MULTIPLE problems and it ended up being the pcm. just my .02. BTW i got mine from PCMforless.com. not sure if they are still in business.
That surge like it has a big cam is NOT the pcm! Check your CAI/intake tube and TB for an airleak or vaccum leak.
Bad CAT causes reduced performance.
Bad O2's will cause it to richen up.
Bad CAT causes reduced performance.
Bad O2's will cause it to richen up.
