Is there any aftermarket map sensors out there that will work for my 08 ss/tc? both me and my buddy keep blowing them out... we are told that these stock maps are only 2.5 bar sensors... we were thinking does anyone know if we can swap it for a map sensor out of the gm stage kit from the solstice or when the cobalt kit comes out right outa there? any help would be great!!!!

 

is your car tuned or is it stock? if its tuned does it peak 25psi???

 

Jarhead, That is a MAF not a MAP. I have been going through this with my car too. I have kidded two MAP sensors so far within 6000 miles or so. I guess I will be forced to pick up a stage kit when it comes out.

 

are all your guys cars tuned because i just got mine tuned and both my tuner and i think that is the problem w/ my car ....three days after a night of some "aggressive" driving my car was was giving us a message about turbo underboost and only spooling to 18 psi

 

Sounds like you have a boost leak. Try tightening all the clamps. When the MAP goes out you will not loose boost. It will idle bad and have a check engine light for the MAP reading too low.

 

Ok... I still don't understand this... our MAP is a 2 bar, and the stage kits is a 3 bar, right? From what I understand, why these are going out is because a little metal piece that flexes with the pressure, and its getting over flexed, right? Ok... so, why are we not able to use the 3 bar from the stage kit? Obviously the little metal piece will be more sturdy, and able to handle more pressure. Again, obviously, we can't tune for it, yet... but why wouldn't we be able to use it?

 

The stage kit sensor will not be calibrated properly to work with our ECM. Let say on the stock sensor that 12 psi equals 2.5 volts, on the stage kit sensor that same 12 psi would equal 1.9 volts. If you don't calibrate the ECU for this change it will think that the 1.9 volts that it is getting from the stage kit sensor is really less than 12 psi because if it were the stock sensor it would be.

 

Ah, makes sense now.

 

Ah sorry must be going blind in my old age thought was maf he said yes higher boost tearing them up kinda funny the gto's were using the cobalt 2 bar because theres came with a one bar.

 

I believe it has something to do with adding intakes on after your tune is done... I dont know if the intake throws off the MAF readings so much that it changes your boost to spike up to/past 25psi I guess we just need more feedback from people who's map sensors went out!

 

it has nothing to do with changing intakes... mine went out when the car was STOCK... does anyome know the stock specs on these maps?... and also if you have a tune and you think ur spiking 25 like i did put in a mechanical boost gauge... its way more acurrate you should find ur basickly peaking 21 or 22 psi and holding 20

 

what mods do you have? it may be a problem with both your mods and tune.

 

What year are all your guys’ cars? From what I gather we all have 2008's and I don't recall ever reading a post about a MAP sensor going bad on a 2009...

 

Once again it cant be the mods bc mine did this stock... although more boost might have caused it to go faster... i have an 08 tc with 21k on it... around 17k my map went and it was bone stock, got it warrentied and then got a tune... then it went around 19k? and has been like that since... i have since goten a dejon short ram and a catless downpipe.... why does chevy use these **** sensors!?

 

Once again it cant be the mods bc mine did this stock... although more boost might have caused it to go faster... i have an 08 tc with 21k on it... around 17k my map went and it was bone stock, got it warrentied and then got a tune... then it went around 19k? and has been like that since... i have since goten a dejon short ram and a catless downpipe.... why does chevy use these **** sensors!?

 

my car does this all the time i have a 08 full bolts ons and tune.... i always clear the code with my aeroforce.... it tends to do it when the air is very cool... or when i am going up a hill cruising in the same gear?

hopefully the gm kit will change this... i think i will use their intake... and sell my hahn

 

i have a 2009 ss/tc. bone stock. just hit 19,000. 1st MAP went bad at 10,000. 2nd MAP went bad at 13,500. 3 MAP just went bad at 18,600. they have all been coverd at the dealer. the service manger said he will keep covering it as long as im not aftermarket tuned. i rarely beat on my car. on a scale to 10 im in the 5 - 6 range. i do alot of stop and go driving all day.

 

then I would say try another map sensor. mine just went bad. its not going into limp mode but it will only let me see about 20psi even if i command 30. I am waiting on some diff. sensors.

 

how bout the ones in gm stage kit?

 

no mods just tune and im almost positive its not the tune hes tuned four other lnfs one is in the tunes/hp thread and had no problems it was tuned by wickedss

your right i think i do have a boost leak with my bypass valve. i got a check engine light on because it was sticking and i took it into the dealer they said they fixed but all they did was clean it off and unstick it and now it makes even less boost. (stock it made 15-17 now 12-13) i guess im going to buy that dejon upgrade spring....

 

u can have my spring if u pay shipping

 

what error code does it give you when your map goes out and how does it change how it drives exactly?

 

p107 - low voltage for MAP sensor . mine boggd down at WOT every now and then. only when boost was spiking. other then that drove fine and just had a check engine light that gets annoying.

 

i blew my second map sensor last tuesday but ran a 13.5 @ 106.7mph 2.2 60ft with 39psi in tires(lol)... I was the first tc tuned by wicked and I have 2 maps on order but they are on national back order. When the sensor works I hit 22 psi falling to 20. With the sensor blown its like 19psi. I'm going to get a updated tune thursday if I get my new sensors before then so nate08tc you may wanna give wicked a shout and see if he can reflash you too.

Oh yeah the car had 12k when I was first tuned and map lasted about 1500 miles after that, I dynoed 308.5hp and 343tq and about a week later the first map blew. The second map only lasted two weeks so I'll nurse it if tune doesnt fix it and get the gm kit and go from their!

vid of the dyno...

http://www.youtube.com/watch?v=rBbVKB95Tn4

 

They're a different range, you'd need to rescale them but no software can do that for the time being.