skeeters65

iTrader: (1)

Meaning what would the car run like if the MAP sensor was bad, if at all.

Is there a way to actually test the MAP sensor?

Thanks

skeeters65

iTrader: (1)

anyone..
Please help

BLK02WS6

iTrader: (2)

Car would run rich (as if at WOT) because it usually fails to the high kpa. If you have logging software, you can at least look at it and see if it is reading properly - with the engine not running, but the key ahead, it should read atmospheric for your elevation (102 kpa here, but varies by where you live). Does it run at all? Any codes in? You could probably get more help with some more info...

skeeters65

iTrader: (1)

Motor is 2002 LS1 with MS3, No CATS and 1 set of O2 sensors..(69 Camaro)

It has the common P0106 code.

It does run rich(blue smoke) and doesnt idle very well. In the higher RPM it runs well..

What is kpa?
Will a regular scan tool give me that info?

Thanks

2xLS1

iTrader: (25)

Do you think your MAP sensor is bad because you are getting a P0106 code after the cam? Why would you think that the pass/fail MAP paramaters that GM established for that diagnostic on a stock cammed vehicle would be the same with a large cam like a MS3? You need to adjust the parameters in the calibration.

skeeters65

iTrader: (1)

I dont know that is why I am asking..

So what do you think I should do??
When I had the car tuned I thought that would have been done if it need to be so I figured it might be a bad MAP sensor..

2xLS1

iTrader: (25)

In my experience, any cam larger than a 224/224 will need the P0106 paramaters raised to keep from setting that code. Go back to whoever tuned the car and have him change it. Seems a lot of tuners don't do that because it comes up a lot.

skeeters65

iTrader: (1)

What should the MAP parameters be? Would Texas Speed be able to tell me that??

By changing the parameters will it just get rid of the code or will it make it run better??

Thanks

2xLS1

iTrader: (25)

It's just a sanity check between tps positions and expected MAP readings at those TPS positions. I would hope Texas Speed would know how to set them for a large cam. Should just get rid of the code.

skeeters65

iTrader: (1)

What about the rich condition and bad idle??

Not related?

Thanks

2xLS1

iTrader: (25)

Without seeing the tune that is in it and a data log, would just be a guess, but setting the P0106 code itself is not causing it to run bad. And how are you determining it is running rich and when? Idle, part throttle, WOT? It's almost impossible to diagnose these without some kind of scanner/data logger.

skeeters65

iTrader: (1)

I am just guessing as it seems there is alot of blue smoke after it idles for awhile. And the idle is a little wandering..

2xLS1

iTrader: (25)

Blue smoke is usually burning oil.

Eagle02

iTrader: (20)

+1

I too am getting the P0106 code, and didn't realize I had to adjust the tune for the code. I found a sample MS4 tune on hptuner.com - I'm going to give those #'s a try on my tune and see if it cures my code. Thx for the info 2xLS1.

-Eagle

skeeters65

iTrader: (1)

Just an update...

My tuner said to try a new MAP sensor first.. I put a new GM map sensor in it and it is doing the same thing..

Guess I will have to bring it back to him to have the MAP parameters changed..

jocko

i got p0107 on mine but i think is the tune cause it came on after i made some changes on hptuner.

Rob@EFIAlchemy

iTrader: (9)

your max map pressure should be set at 105kpa for the whole scale so it wont set the code

jmofield

ttt... wanted to bump this instead of start new thread but what would a bad map sensor do on a stock cammed full bolt on car. I am throwing p0108 code and havent found any vacuum leaks so would like to know about map sensor before I replace it.

2xLS1

iTrader: (25)

P0108 is different than was talked about here.


P0108
CONDITIONS FOR RUNNING THE DTC
The engine is running.
DTCs P0121, P0122, and P0123 are not set.
The throttle angle is 0 percent when the engine speed is less than 1,200 RPM.
The throttle angle is less than 20 percent when the engine speed is more than 1,200 RPM.
CONDITIONS FOR SETTING THE DTC
The MAP sensor voltage is more than 4.9 volts for more than 4 seconds .