1jz no fuel wiring harness issue

[cpo3619]

My 1jz-gte ran fine, I took it out to put a new clutch in, and took the wiring harness all off. Now I put it all back together and it runs terrible. It starts up and idles ok but you can barely touch the gas and it will act like its going to die. My wideband gauge goes very lean when you touch the gas pedal.
-Fuel pressure is fine and the car has plenty of gas
-new plugs

Seems like a wiring harness/sensor plug in issue. It ran fine and now does not.

 

[Jeff Lange]

Have you checked for codes? Is your MAP sensor plugged in and working?

Jeff

 

[cpo3619]

Yea I'm getting code 14, 21 and 47. It seems like its the TPS but its plugged in fine and worked before. Right when you give the car any gas it cuts fuel. But the fuel pressure remains good and consistant. Also map sensor is pulgged in and vaccum line connected.

 

[f00g00]

http://www.supracentral.com/foundation/mkiv-tsrm/troubleshooting-2jz-gte/
14: Ignition signal
21: Oxygen sensor signal
47: Sub-Throttle position sensor

Check the igniter connections for the 14
Check the connection on the oxy sensor, will run rich if off but will still run.
Check the TPS connection if you have two of them you might have it connected to the wrong one.

The link gives troubleshooting to narrow the problem down but if reading wires you will need to use the pinout for the 1JZ ECU and harness.