Power lose mid throttle P1316
1996 5speed. Had a bunch of codes when I first cleared it. I cleaned the IAC, MAF , induction cleaning with seafoam, seafoam in tank, plugs, wires. The symptoms It's having now same as before. Runs great at little throttle and anything above 2/3 throttle. But if I try to just cruise and maintain speed it begins to lose power and skip on a few cylinders. If I push the throttle down to about 2/3 throttle it immediately begins to run better. Only code that's shown back up in the 50miles and about 6 drive cycles is the P1316 code. I'm stumped . |
Whats the actual condition of your spark plugs and plug wires?
P1316 is related to a misfire. |
Throttle Position Sensor original?
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Originally Posted by Toran
(Post 670189)
Whats the actual condition of your spark plugs and plug wires?
P1316 is related to a misfire. |
Originally Posted by ihscouts
(Post 670199)
Throttle Position Sensor original?
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Originally Posted by Nfbeckman
(Post 670211)
more than likely it's original. Would it cause a problem like this? |
Update
I did some experimenting with the fuel pressure. Test readings I got are: 1. initially pumps up to 26psi when pump cycles but drops to zero immediately. 2. With clamp on the return line I get same results. 3. If I clamp the pump side before it stops primiming it will hold pressure after the pump shuts off. 4. While running 26psi. 30psi if I disconnect regulator. and idle smooths out some. 5. If I clamp return line while running idle actually becomes real smooth and picks up some. 6. Clamp the pressure regulator line, pressure goes up to 30 and while driving all misfires and hesitating is almost resolved. I think a new fuel pump and possibly pressure regulator are in order. |
Hit that fuel filter while your at it. :)
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Originally Posted by Toran
(Post 670239)
Hit that fuel filter while your at it. :)
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Auhhh...I know the feeling. I went with the clamp setup.
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