I've got the ignition problem blues ...
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
I've got the ignition problem blues ...
The other night heading out car was running fine, very strong. Pull up to a light and take off ... it sputters above 2k rpm ... won't go any higher. Next light, it idles and then just goes down and dies after about 10 seconds. No backfires, but extremely rough. Finally got it started again after letting it cool 5 minutes or so. Got to the party and after it cooled while there acted fine on the way home.
I just pulled the codes at Autozone and there are 4:
P0507 - Idle Control System RPM Higher Than Expected (Not sure why this, it never idled high, it idled really low then died)
P0140 - 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) (Not sure on this, would it cause this kind of roughness?)
P0300 - Random/Multiple Cylinder Misfire Detected (No idea - but i did find that i have a bad plug boot on one cylinder on the passenger side)
P0410 - Secondary Air Injection System Malfunction (I drive around with this code normally - i took off the AIR system when i put headers on)
Any recommendations?? I hope this isn't the damn opti. it has MAYBE 1500 miles on it!
BTW, i cleared the codes and let it idle for a minute. No code has been reset yet. I'm sure that 410 will come back because of the air sytem, but nothing else has been thrown yet. I checked the IAC too, because of P0507, but it is clean.
I just pulled the codes at Autozone and there are 4:
P0507 - Idle Control System RPM Higher Than Expected (Not sure why this, it never idled high, it idled really low then died)
P0140 - 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) (Not sure on this, would it cause this kind of roughness?)
P0300 - Random/Multiple Cylinder Misfire Detected (No idea - but i did find that i have a bad plug boot on one cylinder on the passenger side)
P0410 - Secondary Air Injection System Malfunction (I drive around with this code normally - i took off the AIR system when i put headers on)
Any recommendations?? I hope this isn't the damn opti. it has MAYBE 1500 miles on it!
BTW, i cleared the codes and let it idle for a minute. No code has been reset yet. I'm sure that 410 will come back because of the air sytem, but nothing else has been thrown yet. I checked the IAC too, because of P0507, but it is clean.
Last edited by GlockLT4; Mar 5, 2006 at 05:28 PM.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
none of those are opti related...
but they make me wonder if some wiring hasn't been damaged.
I would chase the various harnesses back to the source - chiefly, the O2 sensor and the IAC. Something is amiss. Make sure everything is properly connected and working as intended.
Do you have the FSM? if so, just follow the troubleshooting guides.
but they make me wonder if some wiring hasn't been damaged.
I would chase the various harnesses back to the source - chiefly, the O2 sensor and the IAC. Something is amiss. Make sure everything is properly connected and working as intended.
Do you have the FSM? if so, just follow the troubleshooting guides.
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Originally Posted by bogus
none of those are opti related...
but they make me wonder if some wiring hasn't been damaged.
I would chase the various harnesses back to the source - chiefly, the O2 sensor and the IAC. Something is amiss. Make sure everything is properly connected and working as intended.
Do you have the FSM? if so, just follow the troubleshooting guides.
but they make me wonder if some wiring hasn't been damaged.
I would chase the various harnesses back to the source - chiefly, the O2 sensor and the IAC. Something is amiss. Make sure everything is properly connected and working as intended.
Do you have the FSM? if so, just follow the troubleshooting guides.
.
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Sounds like a short or a bad ground. You need to look at the error tree in your factory service manual. I don't know why your IAC and 02 sensor would go at the same time. Go to your manual and follow the tree.
Thread Starter
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Originally Posted by elefkow
Sounds like a short or a bad ground. You need to look at the error tree in your factory service manual. I don't know why your IAC and 02 sensor would go at the same time. Go to your manual and follow the tree.
.
