martinh67
Member
- Joined
- December 10, 2008
- Messages
- 18
- Reaction score
- 0
- City, State
- Virginia
- Year, Model & Trim Level
- '94 XLT
Newbie here.
SYMPTOMS
1. Little rough on the idle - sometimes it sways back and forth. At normal driving speed, she purrs like a kitten.
2. CEL comes on after it starts warming up
TROUBLESHOOTING
1. Code 332 KOEO test (EGR Valve opening not detected)
2. Code 335 KOEO test (PFE or DPFE sensor voltage out of Self-Test range)
3. Code 543 KOEO test (When the PCM commanded the fuel pump on, voltage was not detected on FPM) Related?
4. Code 326 KOER test (PFE or DPFE circuit voltage lower than expected with zero EVR duty cycle)
Is it the EGR valve or the PFE? Or both??
SYMPTOMS
1. Little rough on the idle - sometimes it sways back and forth. At normal driving speed, she purrs like a kitten.
2. CEL comes on after it starts warming up
TROUBLESHOOTING
1. Code 332 KOEO test (EGR Valve opening not detected)
2. Code 335 KOEO test (PFE or DPFE sensor voltage out of Self-Test range)
3. Code 543 KOEO test (When the PCM commanded the fuel pump on, voltage was not detected on FPM) Related?
4. Code 326 KOER test (PFE or DPFE circuit voltage lower than expected with zero EVR duty cycle)
Is it the EGR valve or the PFE? Or both??