this truck is failing the nox emission. Egr valve is working manualy. the pcm is not sending a signal (ground) to the egr solenoid. tps,mas,egr temp,baro/map sensor-input sensor are all [...] computer ground ok. found evap solenoid had a high voltage drop of ....

FIX posted 1/21/2006

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle