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boost issues and limp mode on an SS/SC

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Old May 26, 2012 | 09:50 PM
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boost issues and limp mode on an SS/SC

I went to the track today for my birthday and the day started off great no issues
got to beat my buddys 2010 MS3 and my other friends 98 cobra who has been running his mouth way to much.
In doing so I noticed I was only boosting 15.3psi I figured it was due to heat soak im usually 18 highest ive seen on my interceptor say is 19psi but it was Hot out today IAT2's where up around 147 all day
but when I went to leave and head out back home car went into limp mode I pulled over waited about 5 mins with the car off got back in everything was fine again except still only hitting 15.3psi get it home and off the highway just driving around with the same group of friends it goes into limp mode again brought it home and parked it.

Now I have the idea its some kind of faulty pressure sensor just dont know for sure. not reading right or something along those lines

any and all help would be greatley appreciated
Thanks
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Old May 26, 2012 | 09:55 PM
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pics from the track for fun


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Old May 27, 2012 | 09:42 AM
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anyone? bump
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Old May 27, 2012 | 11:45 AM
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P0086 off to clean the MAF
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Old May 27, 2012 | 12:19 PM
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Originally Posted by wRcKLes
P0086 off to clean the MAF
P0068 - I would clean off the MAF and TB.
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Old May 27, 2012 | 12:25 PM
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I have the same code. Imma try cleaning the maf too
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Old May 27, 2012 | 12:33 PM
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Cleaning my MAF made it read so much better...only fluctuates .02 lb/min before if flex a lot
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Old May 27, 2012 | 09:39 PM
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Originally Posted by Gelladuga69
P0068 - I would clean off the MAF and TB.
ill have to do that tomorrow but ill make sure it gets done being sent into limp mode sucks
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Old May 27, 2012 | 09:45 PM
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MAF is cleaned Have not been able to get on it to see if boost has been restored yet but ill make sure my boost goes back to where it should be.
I also took the time to clean the Air filter out with one of K&N's recharge kits because my filter needed it, I suggest the same should be done if anyone else is experiencing the same P0068 code
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Old May 27, 2012 | 10:12 PM
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I had the same problem in my 83 corvette. I changed the glow plugs and blinker fluid and I was good.
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Old May 28, 2012 | 04:06 AM
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Originally Posted by wRcKLes
MAF is cleaned Have not been able to get on it to see if boost has been restored yet but ill make sure my boost goes back to where it should be.
I also took the time to clean the Air filter out with one of K&N's recharge kits because my filter needed it, I suggest the same should be done if anyone else is experiencing the same P0068 code
The recharge kit was a good idea.
Make sure you clean the TB too with TB cleaner. You don't have to take it off, just spray some TB cleaner on a clean rag and wipe up all that carbon and stuff.
This and cleaning the MAF fixed my EPR problem. It sucked getting that **** when stopping at the bottom of a hill or just cruising on the freeway..
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