See post #3. You said your problem started with a different fuel filter. Replace it with a stock filter and see what happens. It may not improve your situation but at least you haven't compounded your problem by having an unknown in the mix.
Reduced engine power no CEL or codes
- Thread starter VEfreak
- Start date
Only time I’ve seen reduced engine power is when there’s a maf issue. Now it could be the egr sticking causing the ecm seeing a maf reading it doesn’t like.
Also if there’s a boost leak somewhere that could cause that same issue but I think a map code would set
Also if there’s a boost leak somewhere that could cause that same issue but I think a map code would set
You'll need something like EFILive, a Tech2, or a high-end scanner like a Snap-On, etc.
Sent from my FlashScan V2 using Tapatalk
Sent from my FlashScan V2 using Tapatalk
No luck fixing the problem. I finally found time to take it to a professional shop. They were gracious enough to throw the code reader on it for me. It had two stored codes related to the TPS; P2122 and P2138. I replaced the TPS and no dice, it's still giving the "Reduced Engine Power" message. I'm about ready to throw in the towel unless some else has some miracle suggestion. Thanks for all the help guys, I really do appreciate it even if I couldn't fix this myself.
it's going to be difficult to guide you much more unless we can get more codes, pid info or other readings as we don't have the truck in front of us. where are you at? maybe one of us with the right scanner is close enough to help you out
