Mechanics

ENGINE DOES NOT REV ONLY IDLES

1997 Toyota Corolla

Engine Performance problem
1997 Toyota Corolla 4 cyl Two Wheel Drive 115000 miles

The motor will idle but when you depress throttle it rev to about 2000 rpm then cuts out. The computer puts up a fault code P0120 which is tps I tried a new sensor no change The spark plug still sparks when engine shuts off so I am thinking fuel starvation checked fuel pump working disconnected MAP sensor no change also TPS can be disconnected no change. Is it my ECUThanks
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Vintagefeetup
October 4, 2010.



With key on engine off check for battery power at the injector connector
do you have power at the yellow/green wire
start engine, continue with the power check
cause the stalling do you have power or not

BMRFIXIT
Oct 6, 2010.
Still has power after stall

Tiny
Vintagefeetup
Oct 6, 2010.
ECM is not grounding the injectors

BMRFIXIT
Oct 6, 2010.
How do I correct that

Tiny
Vintagefeetup
Oct 6, 2010.
I will look into tomorrow when I go to work
possible bad ECM

you did clear the codes and still coming up with the TPS code (correct )

BMRFIXIT
Oct 6, 2010.
The codes were cleared and they are still clear NO tps fault code

Tiny
Vintagefeetup
Oct 6, 2010.


http://www.2carpros.com/forum/automotive_pictures/99387_1_6.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_2_4.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_3_2.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_4_1.jpg


BMRFIXIT
Oct 7, 2010.
I don't see a ground for the injectors on this pinout. So how do I correct it?

Tiny
Vintagefeetup
Oct 7, 2010.


http://www.2carpros.com/forum/automotive_pictures/99387_4_2.jpg




http://www.2carpros.com/forum/automotive_pictures/99387_1_7.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_2_5.jpg



http://www.2carpros.com/forum/automotive_pictures/99387_3_3.jpg


BMRFIXIT
Oct 7, 2010.
I want to let you know the problem was nothing to do with the injectors or a ground on the ECU it was a mechanical problem with translated into a electrical problem The crankshaft timing gear had a broken tooth on the reluctor part which in turn through off the RPM from the crank sensor and shut the engiine down when tried to accelerate. Unfortunately I paid a auto shop to tell me this so there you go for next time.

Tiny
Vintagefeetup
Oct 9, 2010.
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