1993 Pontiac Trans Sport 3.8
#12
Retired
What is the fuel pressure?
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
#14
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#16
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You are seeing 12V at the injectors because the injectors are constantly powered 12V+ when the key is on. The PCM controls the GROUND to the injectors. You still need to address the code 26 issue. This is the quad driver A circuit. The PCM controls/monitors a few things on this circuit. Give this forum a search for "quad driver" and you will find many instances of code 26.
Disconnect both fans and attempt to start...???
Disconnect the EVAP purge valve solenoid and attempt to start...???
26- Quad Driver A module monitors the low speed fan, Evap canister purge solonoid, the HIGH TEMP light, and TCC apply. Note that it does NOT monitor the high speed fan relay.
Disconnect the EVAP purge valve solenoid and attempt to start...???
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
#17
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BTW, its almost impossible to monitor the injector circuit with a cheap multimeter or a test light.
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2023 Jeep Rubicon Diesel
#18
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The code 26 was tried on all controlled parts and we have found a fault in the ground line of the solenoid valve for gasoline vapor extraction, this has been fixed and the error has come back again.
The fuel pressure is 42psi.
The fan control was also completely measured by also there was no error.
We removed the fan and the plug from the solenoid valve but he did not start anyway.
We measured with a high-quality multimeter whether the injectors are controlled, but nothing happens.
What is the HIGH TEMP light, and TCC?
The fuel pressure is 42psi.
The fan control was also completely measured by also there was no error.
We removed the fan and the plug from the solenoid valve but he did not start anyway.
We measured with a high-quality multimeter whether the injectors are controlled, but nothing happens.
What is the HIGH TEMP light, and TCC?
#19
Retired
TCC is Torque Converter Lockup. Disconnect the trans electrical connector and see if it starts.
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
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2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel