Is it TPS sensor?
- Thread starter aviator12
- Start date
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Either ECU is on its way out or you could have fuel problems...
- Thread starter
- #3
hmmm.. can it b a disturbed vacuum system or leakage?
I'd say download the 1KZ-TE repair manual and start going through everything.
The ECU's on these are known to have failed capacitors and could cause this problem.
Other things I could think of are the RPM pick-up sensor on the top of the pump, or the crank pick-up sensor. Check the connectors/wiring, and check the sensor resistance as per the manual. Check the Spill Control Valve, Check the Timing Control Valve.
Really it is no different than troubleshooting any EFI system. However you should make sure you understand the system first.
Read this to understand the system: V 3 P5ZGR01.pdf
Here is the 1KZTE manual: 1KZ-TE Engine Manual
The ECU's on these are known to have failed capacitors and could cause this problem.
Other things I could think of are the RPM pick-up sensor on the top of the pump, or the crank pick-up sensor. Check the connectors/wiring, and check the sensor resistance as per the manual. Check the Spill Control Valve, Check the Timing Control Valve.
Really it is no different than troubleshooting any EFI system. However you should make sure you understand the system first.
Read this to understand the system: V 3 P5ZGR01.pdf
Here is the 1KZTE manual: 1KZ-TE Engine Manual