weird idle and sudden burst of power
Quick question
I get a sporadic check engine light for high O2 sescor banks .. I installed fast intension high flow cats, CAI "ztube and stillen cone filter" and plenum spacer and not liking the results!
Weird idle and sudden burst of power.. The car bogs down hard when you get on it...
I got the dealer to reset the MAF sensor and re laern the idle with the consult. Thanks for the help guys!
ERROR CODEs
evaporative immersion p0455
p0132 - O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor1)
p0152 - O2 Oxygen Sensor Circuit High Voltage (Bank2, Sensor1!
p0138 - O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor2)
I get a sporadic check engine light for high O2 sescor banks .. I installed fast intension high flow cats, CAI "ztube and stillen cone filter" and plenum spacer and not liking the results!
Weird idle and sudden burst of power.. The car bogs down hard when you get on it...
I got the dealer to reset the MAF sensor and re laern the idle with the consult. Thanks for the help guys!
ERROR CODEs
evaporative immersion p0455
p0132 - O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor1)
p0152 - O2 Oxygen Sensor Circuit High Voltage (Bank2, Sensor1!
p0138 - O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor2)
Last edited by matdaddy; Aug 15, 2011 at 09:32 PM.
vtech might be a bettter idea! not impressed!
Reset the ECU this morning its funny bc my car was running amazingly like 3days before the light came back! i got this responce from a shop.
"You have a bit of a strange problem. With the codes you're getting, the usual fix is replacing the o2 sensors as 90% of the time when they are out of range (high) it's the o2 sensor that's the problem. In this case you have 3 o2 sensors coming up intermittently which leads me to believe you have a problem that doesn't involve the o2 sensors themselves. I'd be looking at the wiring between the ecu and the o2 sensors including the power and ground circuits related to the o2 sensors or possibly the ECU as a problem. None of the mods you added to your car should have affected the o2 sensors unless a ground wire was left off when doing the plenum spacer or o2 sensor wires got damaged during the exhaust parts install. An outside possibility is the MAF sensor gone bad but it doesn't usually trigger these codes, you would instead see lean or rich codes and sometimes no codes at all. I'm thinking that the poor driveability and the o2 codes are related but i'd also be checking closely for vacuum leaks around the plenum as this is a somewhat common problem when the spacers are installed. I'd be happy to attack this problem for you if you don't mind sending the car down to us. We also have access to dealer scan tools and information if that is required in solving your problem. ThanksMikeWhitehead Performance"
Reset the ECU this morning its funny bc my car was running amazingly like 3days before the light came back! i got this responce from a shop.
"You have a bit of a strange problem. With the codes you're getting, the usual fix is replacing the o2 sensors as 90% of the time when they are out of range (high) it's the o2 sensor that's the problem. In this case you have 3 o2 sensors coming up intermittently which leads me to believe you have a problem that doesn't involve the o2 sensors themselves. I'd be looking at the wiring between the ecu and the o2 sensors including the power and ground circuits related to the o2 sensors or possibly the ECU as a problem. None of the mods you added to your car should have affected the o2 sensors unless a ground wire was left off when doing the plenum spacer or o2 sensor wires got damaged during the exhaust parts install. An outside possibility is the MAF sensor gone bad but it doesn't usually trigger these codes, you would instead see lean or rich codes and sometimes no codes at all. I'm thinking that the poor driveability and the o2 codes are related but i'd also be checking closely for vacuum leaks around the plenum as this is a somewhat common problem when the spacers are installed. I'd be happy to attack this problem for you if you don't mind sending the car down to us. We also have access to dealer scan tools and information if that is required in solving your problem. ThanksMikeWhitehead Performance"
Joined: Mar 2009
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From: By the sea, Tx
G35 sedan w/ too much money in mods

vtech might be a bettter idea! not impressed!
Reset the ECU this morning its funny bc my car was running amazingly like 3days before the light came back! i got this responce from a shop.
"You have a bit of a strange problem. With the codes you're getting, the usual fix is replacing the o2 sensors as 90% of the time when they are out of range (high) it's the o2 sensor that's the problem. In this case you have 3 o2 sensors coming up intermittently which leads me to believe you have a problem that doesn't involve the o2 sensors themselves. I'd be looking at the wiring between the ecu and the o2 sensors including the power and ground circuits related to the o2 sensors or possibly the ECU as a problem. None of the mods you added to your car should have affected the o2 sensors unless a ground wire was left off when doing the plenum spacer or o2 sensor wires got damaged during the exhaust parts install. An outside possibility is the MAF sensor gone bad but it doesn't usually trigger these codes, you would instead see lean or rich codes and sometimes no codes at all. I'm thinking that the poor driveability and the o2 codes are related but i'd also be checking closely for vacuum leaks around the plenum as this is a somewhat common problem when the spacers are installed. I'd be happy to attack this problem for you if you don't mind sending the car down to us. We also have access to dealer scan tools and information if that is required in solving your problem. ThanksMikeWhitehead Performance"
Reset the ECU this morning its funny bc my car was running amazingly like 3days before the light came back! i got this responce from a shop.
"You have a bit of a strange problem. With the codes you're getting, the usual fix is replacing the o2 sensors as 90% of the time when they are out of range (high) it's the o2 sensor that's the problem. In this case you have 3 o2 sensors coming up intermittently which leads me to believe you have a problem that doesn't involve the o2 sensors themselves. I'd be looking at the wiring between the ecu and the o2 sensors including the power and ground circuits related to the o2 sensors or possibly the ECU as a problem. None of the mods you added to your car should have affected the o2 sensors unless a ground wire was left off when doing the plenum spacer or o2 sensor wires got damaged during the exhaust parts install. An outside possibility is the MAF sensor gone bad but it doesn't usually trigger these codes, you would instead see lean or rich codes and sometimes no codes at all. I'm thinking that the poor driveability and the o2 codes are related but i'd also be checking closely for vacuum leaks around the plenum as this is a somewhat common problem when the spacers are installed. I'd be happy to attack this problem for you if you don't mind sending the car down to us. We also have access to dealer scan tools and information if that is required in solving your problem. ThanksMikeWhitehead Performance"
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