TJ sputters when I hit the gas

[Wes5395]

2001 TJ 97k miles on it. Sputters when I hit the gas and won’t drove sometimes
I changed out the throttle position sensor
Crankshaft position sensor
And O2 sensors

It runs fine for little while then today I tried it again and it was sputtering and wanting to shut off

Any suggestions?

 

[Chris]

What brand of O2 sensors, CPS, and TPS sensor did you use?

Are you getting any codes on an OBDII reader?

 

[Wes5395]

I used NTK for the O2 sensors
For the others I’m not sure.

The codes were a mix of coil readings
Vacuum
Emmisons
Crank/camshaft sensor

 

[Wes5395]

Now it won’t start
Smells like fuel

 

[KCsTJ]

Now it won’t start
Smells like fuel

If you will list the engine codes we can advise or troubleshoot

 

[Wes5395]

I’m getting a code reader from a buddy tonight I’ll post when I get home. Thanks!

 

[Wes5395]

Alright so the code P0340
For the cam shaft came up

I replaced that today and now it still won’t start it’s almost like it’s out of gas but it has a full tank
I checked all the fuses they’re good.

I’m thinking the fuel filter or pump next.?

 

[Wrangler69]

Can you hear the fuel pump when you turn the key on? It only runs a sec or two with just the key on


Sent from my iPhone using Tapatalk

 

[Wes5395]

I think I did early I’ll try in the morning to see if I hear it

 

[TJ4Jim]

The 2001 should have the pressure test port on the fuel rail, you can usually get a free rental on the pressure testers.

 

[Wes5395]

Thank you! I really appreciate it I’ll see how it goes tomorrow

 

[Wes5395]

It won’t turn on but when I try to crank it the fuel pressure is at about 41
And I can hear the pump
Its wanting to turn over but it won’t

 

[Wes5395]

Alright so up to date. I’ve replaced the ecm, crank sensor, the entire cam sensor, and o2 sensors and it’s doing this now

 

[Wes5395]

This.