i replaced the evp sensor disconnectd the battery and the light still comes on, i just got to re pull the codes now

 

Good luck! Hopefully your down to a 172.

 

LOL..I Agree!!

"Liberty" is a well armed lamb disputing the vote!

 

Glad you got a kick out of it!

 

i got rid of the 172, but have a 311 the 332 and now a 538, what should i do now?

 

Courtesy of "JCMS": Last you will perform an engine running test.
Start the engine and run at 2000 RPM for two minutes to warm sensors. Turn off engine and wait 10 seconds. Install jumper wire, start the engine and let it idle. Watch for the engine identification code. It will be 3 flashes for a six cylinder and 4 flashes for an 8 cylinder. If your vehicle is equipped with the E4OD transmission, press and release the brake pedal immediately after the ID code. This tests the brake on/off switch. If your vehicle is equipped with a power steering pressure sensor (4.9 and 5.0 '87-'90 and '93 5.0 without E4OD) turn the steering wheel at least a half turn and return immediately after the ID code (or after the brake test). Next, watch for a single quick flash. If it occurs, floor the gas pedal and release quickly to perform a wide open throttle test.

Sounds like operator error.

 

that it was, didnt know how exactly to do a KOEO test on my truck, ill try that sometime before school or after tomarrow, thanks

 

No light?

 

i still get the 311 and 332

 

Sounds like a cracked or leaking Vac hose(s)/tube(s) affecting EGR valve & thermator air function.