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.
When I first got my 2001 PSD with 3.5 inch down pipe with 4 inch back, Micro-tuner programer,K&N air filter and housing, and a power-aid spacer plate.
I would let it idle for about 5 min. and it would automaticly idle up a little. Now it does not do it.Does any one now anything about this? Is it good or bad?
I would just say a little longer warm up's but most people if they pull the turbo off they gut it anyway to get the lower egt's and some are rewiring them to use them as an exhaust brake so the choice is yours.
I would just say a little longer warm up's but most people if they pull the turbo off they gut it anyway to get the lower egt's and some are rewiring them to use them as an exhaust brake so the choice is yours.
refuse2
The exhaust backpressure valve is not what causes it to idle up. That is purely a function of the PCM. If the outside air temp is above 40*F it will not fast idle. There are other parameters as well..EOT, ECT, etc., but the outside temp is the primary factor.
You don't have to worry about it if your truck doesn't idle faster when it's cold out. Those of us with the older trucks have been living with it for years.