CEL have a few here Need advice

[zach21087]

Ok so I got a few CEL's

P0139 Circuit slow response
P0102 MAF/VAF circuit low input
P0234 Turbo Overboost
P0245 Wastegate solenoid circuit low

Also a little extra info, when i start my car i get this really scratchy gross sound for a second and then it goes away and the car drives fine. Also it has completely not started and I have had to jump it. And a lot of times it wont start very smoothly. Any advice or help would be nice. ALso my mechanic buddy said the scratchy sound could be somehting with oil compression but he was not sure.

 

[jville]

well the low voltage ones are caused by obviously the low battery and the ECM reading the low voltage, give me a few to look up the others.

 

[jville]

whats year make and model?

 

[zach21087]

whats year make and model?

2006 Mazdaspeed6

 

[zach21087]

So all i need is a new battery?

 

[wannabe]

no. if you are getting "scratchy sound" thats not a good thing. and overboost is never good. take it in. sounds to me like you might have a problem with the turbo and/or wastegate.

 

[superskaterxes]

the scratchy thing sounds like a new TSB that is out. check the "other" forum for details because alot of other people are experiencing the same thing.

 

[RevLimitLaunch]

are you running more than stock boost with the ems? that will cause all of those problems right there. wastegate solenoid circuit would be low because it's closing the wastegate more to build more boost, turbo overboost because it's running more than stock psi, maf circuit low input due to the increased air and the circuit slow response i belive to go hand in hand with it.

and low circuit input DOES NOT mean anything about the battery.


and yeah check that tsb asap, it's not a good thing whatsoever!!!!