Ok, I just got my car back from the shop and they said it's throwing a P1494 LDP switch code. What the heck is an LDP switch? The onyl time the car acts up is @ start-up. Once she's warm, she's fine and she boosts fine. Any ideas? Please email me @ jsturm@icrc-hq.com or jsturm@icrcsolutions.com You can post too as I check the boards every hour or 2. Thanks guys!

Jeremy

During evaporative system diagnosis, Leak Detection Pumps have mistakenly been replaced. A thorough inspection for pinched, kinked., or disconnected supply vacuum lines (as currently listed in the Powertrain Diagnostic Procedures) is a critical step in diagnosing DTC P1494 (LDP SW OR MECHANICAL FAULT). Additionally, the other evaporative leak faults (DTC P0442 - SMALL LEAK, P0455 - LARGE LEAK, and P0456 - VERY SMALL LEAK) should have the supply vacuum lines examined for pinches or kinks prior to any LDP component replacement.

The supply vacuum lines should be checked from the engine compartment all the way to the fuel tank, including the LDP and purge system.

NOTE: VERIFY ALL RELATED SUPPLY VACUUM LINE ROUTINGS FOR PINCHES, KINKS, OR DISCONNECTION'S BEFORE REPLACING LDP SYSTEM COMPONENTS.

Its part of the Evap system, check all vacuum lines starting from under the bumper on the front passenger side