97 TJ starts but then dies

[Just empty every pocket]

Ok I know this has been around but I have tested and replaced just about everything new pcm, crank sensor, cam sensor, cap,rotor, plugs and wires, checked fuel press and finally ck injectors and after starting the injectors quit firing. Thinking I got a bad pcm

 

[Chris]

Any error codes?

 

[97' TJ]

Ok I know this has been around but I have tested and replaced just about everything new pcm, crank sensor, cam sensor, cap,rotor, plugs and wires, checked fuel press and finally ck injectors and after starting the injectors quit firing. Thinking I got a bad pcm

If you don't have an OBD2 reader you can cycle the key from off to pre-start 3 times (off click click, off click click, off click click) without andtrying to start it. My 97 will show codes in the odometer to what could be wrong.

 

[97' TJ]

If you don't have an OBD2 reader you can cycle the key from off to pre-start 3 times (off click click, off click click, off click click) without andtrying to start it. My 97 will show codes in the odometer to what could be wrong.

 

[Jerry Bransford]

See if it will remain running when you hold the gas pedal down just a little. If it will, your IAC (idle air control) is dirty and just needs cleaning which is easy. If it is, there's an easy way to clean it.

 

[Just empty every pocket]

Any error codes?

Nope

 

[Just empty every pocket]

See if it will remain running when you hold the gas pedal down just a little. If it will, your IAC (idle air control) is dirty and just needs cleaning which is easy. If it is, there's an easy way to clean

 

[Just empty every pocket]

See if it will remain running when you hold the gas pedal down just a little. If it will, your IAC (idle air control) is dirty and just needs cleaning which is easy. If it is, there's an easy way to clean it.

No if I give it gas it still dies

 

[D M]

Have you checked the battery and or alternator? When my alternator crapped out on me my jeep wouldnt stay running

 

[TJ4Jim]

You stated fuel pressure was checked, what pressures were you seeing.

 

[jwilkinson01]

I am pretty sure the same thing happens when I accidentally grab my spare door key that doesn’t have a transponder.

 

[Just empty every pocket]

If you don't have an OBD2 reader you can cycle the key from off to pre-start 3 times (off click click, off click click, off click click) without andtrying to start it. My 97 will show codes in the odometer to what could be wrong.

No codes

I am pretty sure the same thing happens when I accidentally grab my spare door key that doesn’t have a transponder.

No security key

See if it will remain running when you hold the gas pedal down just a little. If it will, your IAC (idle air control) is dirty and just needs cleaning which is easy. If it is, there's an easy way to clean it.

3-5 seconds and it stalls the noid test shows injectors stop firing

You stated fuel pressure was checked, what pressures were you seeing.

40 key on 49 run

Have you checked the battery and or alternator? When my alternator crapped out on me my jeep wouldnt stay running

Yes bat is holding 13 v

 

[Just empty every pocket]

Any error codes?

Nope

 

[cmcredeur]

We just purchased a new computer and had a program to our Vin number and our jeep is doing the same thing gauges work. It starts up runs for about 30 seconds then dies out no matter if we give it gas or not. Did you ever favorite your out what was wrong with yours?

 

[Chris]

We just purchased a new computer and had a program to our Vin number and our jeep is doing the same thing gauges work. It starts up runs for about 30 seconds then dies out no matter if we give it gas or not. Did you ever favorite your out what was wrong with yours?

@Wranglerfix may be of some help here. Sounds like a potential SKIM issue.

 

[Wranglerfix]

We just purchased a new computer and had a program to our Vin number and our jeep is doing the same thing gauges work. It starts up runs for about 30 seconds then dies out no matter if we give it gas or not. Did you ever favorite your out what was wrong with yours?

@cmcredeur The skim function is activated on the ecm. We can disable that for you if you would like to send it in.