Help request - Multiple Codes (GVR4 w/Evo ECU)
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From: San Antonio, Tx
Help request - Multiple Codes (GVR4 w/Evo ECU)
Ok down to it.
The car has been running great for months. I changed the tranny. I replaced a bad alternator. I rewired the distro block at the battery. The car ran normal after the tranny change. After the Alt/Rewire, not so much.
Codes
P0122
P0183
P0335
P0340
P0 0
P0 0
P1 2
It has also thrown numerous other codes including a "C0 0" code. Codes pulled using WoBD. I have no idea what the "Px x" or "Cx x" codes are. With a fresh reset of the battery, the ECU will throw only a single code P0122. If I turn the car over, the codes start to pile up.
The car does run. It sounds like it is running on two. The number 1 and 4 coils(COP Ignition,DSM ignitor, ran perfect in past) heat up with the key in the on position.
Some questions and ideas.
No dedicated positive wire should have zero resistance to ground. Yeah?
The "Ground" for the sensors(Pin 40) are going to the sensors from the ECU and should read zero resistance to ground at the clip with the car powered?
Bad Alternator diode?
The car has pulled as many as 14 codes at one time, almost as if there is a bundle which has just been cut. This is not the case of course but that is how it is presenting. My thought is that somewhere a common ground is getting power yet nothing is shorting out. No fuses blow, nothing. The interior lights work perfect, headlights, nothing is wrong with it.
To quell the first response. I have two ECU's. They both present with the same problem. One was just pulled from my running Evo 8 and both run the Evo perfectly so it is not a bad ECU. It is something physical. My first idea is that if packs 1 and 4 are hot with the key in, not started, they must be seeing massive resistance through them or constant power. Since the are wired directly to the ignitor and have a dedicated power trigger from the ECU, it must be somewhere in this area. I have removed the harness and it is perfect however. How would the coils heat up in such manner I have no idea.
I am at my wits end here so I am reaching out to the community.
/brox
The car has been running great for months. I changed the tranny. I replaced a bad alternator. I rewired the distro block at the battery. The car ran normal after the tranny change. After the Alt/Rewire, not so much.
Codes
P0122
P0183
P0335
P0340
P0 0
P0 0
P1 2
It has also thrown numerous other codes including a "C0 0" code. Codes pulled using WoBD. I have no idea what the "Px x" or "Cx x" codes are. With a fresh reset of the battery, the ECU will throw only a single code P0122. If I turn the car over, the codes start to pile up.
The car does run. It sounds like it is running on two. The number 1 and 4 coils(COP Ignition,DSM ignitor, ran perfect in past) heat up with the key in the on position.
Some questions and ideas.
No dedicated positive wire should have zero resistance to ground. Yeah?
The "Ground" for the sensors(Pin 40) are going to the sensors from the ECU and should read zero resistance to ground at the clip with the car powered?
Bad Alternator diode?
The car has pulled as many as 14 codes at one time, almost as if there is a bundle which has just been cut. This is not the case of course but that is how it is presenting. My thought is that somewhere a common ground is getting power yet nothing is shorting out. No fuses blow, nothing. The interior lights work perfect, headlights, nothing is wrong with it.
To quell the first response. I have two ECU's. They both present with the same problem. One was just pulled from my running Evo 8 and both run the Evo perfectly so it is not a bad ECU. It is something physical. My first idea is that if packs 1 and 4 are hot with the key in, not started, they must be seeing massive resistance through them or constant power. Since the are wired directly to the ignitor and have a dedicated power trigger from the ECU, it must be somewhere in this area. I have removed the harness and it is perfect however. How would the coils heat up in such manner I have no idea.
I am at my wits end here so I am reaching out to the community.
/brox
Ok down to it.
The car has been running great for months. I changed the tranny. I replaced a bad alternator. I rewired the distro block at the battery. The car ran normal after the tranny change. After the Alt/Rewire, not so much.
Codes
P0122
P0183
P0335
P0340
P0 0
P0 0
P1 2
It has also thrown numerous other codes including a "C0 0" code. Codes pulled using WoBD. I have no idea what the "Px x" or "Cx x" codes are. With a fresh reset of the battery, the ECU will throw only a single code P0122. If I turn the car over, the codes start to pile up.
The car does run. It sounds like it is running on two. The number 1 and 4 coils(COP Ignition,DSM ignitor, ran perfect in past) heat up with the key in the on position.
Some questions and ideas.
No dedicated positive wire should have zero resistance to ground. Yeah?
The "Ground" for the sensors(Pin 40) are going to the sensors from the ECU and should read zero resistance to ground at the clip with the car powered?
Bad Alternator diode?
The car has pulled as many as 14 codes at one time, almost as if there is a bundle which has just been cut. This is not the case of course but that is how it is presenting. My thought is that somewhere a common ground is getting power yet nothing is shorting out. No fuses blow, nothing. The interior lights work perfect, headlights, nothing is wrong with it.
To quell the first response. I have two ECU's. They both present with the same problem. One was just pulled from my running Evo 8 and both run the Evo perfectly so it is not a bad ECU. It is something physical. My first idea is that if packs 1 and 4 are hot with the key in, not started, they must be seeing massive resistance through them or constant power. Since the are wired directly to the ignitor and have a dedicated power trigger from the ECU, it must be somewhere in this area. I have removed the harness and it is perfect however. How would the coils heat up in such manner I have no idea.
I am at my wits end here so I am reaching out to the community.
/brox
The car has been running great for months. I changed the tranny. I replaced a bad alternator. I rewired the distro block at the battery. The car ran normal after the tranny change. After the Alt/Rewire, not so much.
Codes
P0122
P0183
P0335
P0340
P0 0
P0 0
P1 2
It has also thrown numerous other codes including a "C0 0" code. Codes pulled using WoBD. I have no idea what the "Px x" or "Cx x" codes are. With a fresh reset of the battery, the ECU will throw only a single code P0122. If I turn the car over, the codes start to pile up.
The car does run. It sounds like it is running on two. The number 1 and 4 coils(COP Ignition,DSM ignitor, ran perfect in past) heat up with the key in the on position.
Some questions and ideas.
No dedicated positive wire should have zero resistance to ground. Yeah?
The "Ground" for the sensors(Pin 40) are going to the sensors from the ECU and should read zero resistance to ground at the clip with the car powered?
Bad Alternator diode?
The car has pulled as many as 14 codes at one time, almost as if there is a bundle which has just been cut. This is not the case of course but that is how it is presenting. My thought is that somewhere a common ground is getting power yet nothing is shorting out. No fuses blow, nothing. The interior lights work perfect, headlights, nothing is wrong with it.
To quell the first response. I have two ECU's. They both present with the same problem. One was just pulled from my running Evo 8 and both run the Evo perfectly so it is not a bad ECU. It is something physical. My first idea is that if packs 1 and 4 are hot with the key in, not started, they must be seeing massive resistance through them or constant power. Since the are wired directly to the ignitor and have a dedicated power trigger from the ECU, it must be somewhere in this area. I have removed the harness and it is perfect however. How would the coils heat up in such manner I have no idea.
I am at my wits end here so I am reaching out to the community.
/brox
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