junkfixr
New Member
- Joined
- Mar 3, 2010
- Messages
- 82
- Reaction score
- 0
- Points
- 0
- Location
- Virginia
- Vehicle Year
- 1987
- Make / Model
- ford
- Engine Size
- 2.9
- Transmission
- Automatic
I'm having issues recently that seem like fuel. Replaced in-tank pump and everything was fine for about 2 weeks. Then suddenly started losing power (stalling and sputtering) under acceleration. New FPR recently, coolant temp sensor, TFI module, tune etc., etc.
I guess my question is, would the high pressure pump cause symptoms like this? It starts quickly, idles great, but when you put it in drive and put it under a load it stalls, sputters and does everything except cut off. Would a pressure test show a bad pump if there's enuogh fuel to idle but starving only under a load?
It's getting to me 'cause I don't have a code reader but can borrow a fuel pressure guage from the local parts store. I've swapped computers, same results. It doesn't seem to be a spark issue ( no backfire or popping) it just won't accelerate under a load. Any suggestions or hints would be greatly appreciated.
Could an O2 sensor cause such problems, or would it just stay open loop, run o.k. but get bad gas mileage?
I guess my question is, would the high pressure pump cause symptoms like this? It starts quickly, idles great, but when you put it in drive and put it under a load it stalls, sputters and does everything except cut off. Would a pressure test show a bad pump if there's enuogh fuel to idle but starving only under a load?
It's getting to me 'cause I don't have a code reader but can borrow a fuel pressure guage from the local parts store. I've swapped computers, same results. It doesn't seem to be a spark issue ( no backfire or popping) it just won't accelerate under a load. Any suggestions or hints would be greatly appreciated.
Could an O2 sensor cause such problems, or would it just stay open loop, run o.k. but get bad gas mileage?
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