When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The truck is running really well. I recently took it from here in the Houston, Tx area up to Winchester, Ky to get our youngest daughter another Audi Q5 TDI diesel...long story, but a woman high on drugs ran a red light and totaled her other Audi Q5 TDI diesel. The truck is setting the SES light when in the throttle good, but it does go away fairly soon. I recall pulling the code which is the over boost scenario. It is not de-fueling by any means as it pulls hard. I've researched having the boost foolers for both the physical side in the vacuum line off the spider and the electronic side at the plug to the sensor...they both seem to have postitives and negatives. So should I be worried about long term affects on the MAP sensor...or just leave it be?
Tunes should be written to not need a boost fooler. I guess it would depend on when you got your tunes
I run the Riffraff one just as a precaution and I think I got it a long while back when running old tunes.
I’ve never had any defueling but have seen the temporary SES depending on the tuner. My current PHP library tunes do not set the light. My truck has seen over 30psi for years and the MAP has lived so far.
I’ve never had any defueling but have seen the temporary SES depending on the tuner. My current PHP library tunes do not set the light. My truck has seen over 30psi for years and the MAP has lived so far.
The tune I have on my trucks don't defuel when boost goes higher than 23psi, but it will set the SES light for a short time. I don't get into it alot, just worried about the MAP sensor being able to take it in the long run...
The tune I have on my trucks don't defuel when boost goes higher than 23psi, but it will set the SES light for a short time. I don't get into it alot, just worried about the MAP sensor being able to take it in the long run...
The light annoys me even when it’s just temporary. Who’s tunes are you running?
My MAP has put up with all the abuse it’s been put through. Not sure if it may hurt it long term but it’s been taking it for over 10 years.
i made a simple boost with a harbor freight mini air pressure regulator, some vacuum hose, and a few hose clamps. set the regulator to 16 psi and installed in the map sensor line.
Some tuners write the defueling out of the tunes, but not all do. At the time, it was 50% of the cost it is now and I considered it cheap insurance in order to keep the PCM happy if/when the boost exceeded the OEM threshold. Here we are almost 10 years later and the OCR and turbo are still performing great with OEM 267,000 mile injectors even up to 10,000 elevation towing a 5th wheel camper. Seeing at the price for the OCR is now $115, you may want to take a path similar to what Tom took and build your own.