I cant solve corolla stalling when stepping on the gas?

[scorpiox]

Has anybody come across such a problem. I have tried everything possible.

it is a 97 corolla. I can start the engine fine, and the engine runs fine. BUT

Once i step on the gas, the engine dies.

List of things that i have changed:

Computer, New Distributer, New Crank Sensor, Used Injectors, Used Throttle Body with TPS, New SPark Plugs, Used Fuel Regulator pressure valve, Checked Timing.

Is there a way to check the engine code without a reader.

Only thing i notice, if i step on the gas lightly( At the point where the car doesnt die) the check engine light comes on, and if i let go of the gas, the check engine light turns off.

I have worked on this car for almost 1 week.. Any input would be great

[ghost_ryder35]

sure the new injectors are good? Check the vaccum lines and replace the fuel filter. If the filter has some debrie in it when you step on the gas the debri can be sucked into the filter out hole and clogging it causing the gas flow to be incredibly low, then you have way to much air and not enough fuel causing the car to stall. Also a weak fuel pump can cause this problem

[scorpiox]

Would a weak fuel pump cause something like this? Isnt the fuel pump constant pressure? On Idle it is fine..

[medicstudent01]

You need to scan the computer for codes. Since the CEL is coming on, its detecting a fault. Also may want to check your fuel pressure with a gauge.

[94_Rolla_Guy]

i think i would go through and test all the sensors from one end to another. surely your gonna find something. one thing that comes to mind is the map sensor.

Another thing that comes to mind is has the engine harness ever been, modified or played with or aditional wires put with the harness.

The MAP sensor is the only thing that you haven't mentioned and the only sensor that has enough control to cause stalling like that.

[04camcr]

1. your ignitor
or
2. your AFM/MAF sensor

I've had this happen to me on two cars before.

[scorpiox]

what is a AFM Sensor?

I have changed the ignitor as well.. Isnt the MAP sensor on the throttle? I have changed the whole throttle..

Where is the AFM Sensor located?

[ghost_ryder35]

Originally Posted by scorpiox

what is a AFM Sensor?

I have changed the ignitor as well.. Isnt the MAP sensor on the throttle? I have changed the whole throttle..

Where is the AFM Sensor located?

it detects the air flow coming in the intake tubing, located on the intake tubing leading to the intake manifold.

[scorpiox]

you mean the air flow meter?

thats with the throttle?

[ShawnM]

If I had to venture a guess at it, I would also say its the air flow meter.

[scorpiox]

there is no air flow meter on this car??

[ShawnM]

Haha...sorry, your right. No air flow meter on this car, just a MAP sensor.

[04camcr]

is your engine 3s or 5s? im just not very familar with those models,

I use to have a 89 camry with 3s that had the same problem replaced the igniter and AFM and worked perfectly well

and then my 05 corolla was stalling on me when i stepped on gas padel and it was the MAF sensor.

I don't know what a MAP sensor is myself

[REN69]

Originally Posted by 04camcr

is your engine 3s or 5s? im just not very familar with those models,

I use to have a 89 camry with 3s that had the same problem replaced the igniter and AFM and worked perfectly well

and then my 05 corolla was stalling on me when i stepped on gas padel and it was the MAF sensor.

I don't know what a MAP sensor is myself

It's a Corolla, it came with a 4AFE or 7AFE, not a S series.

Scorpiox, have you tried testing the injectors? what about the fuel filter and pump??

[retiredat44]

have it tested for low fuel pressure... not sure how much they charge..