opti and non related emissions code
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Joined: Mar 2000
Posts: 1
From: thousand Oaks CA
opti and non related emissions code
Hi, a year ago I inherited a 96 ws6 after my sister crashed it and got scared, she bought a
new beemer and I took the trans am off her hands. No need to now fix all the problems it
had. I have done work on this car over the years and know the lt1 fairly well but not inside
out like i know the l98. my first question is I have changed the plugs on this car a few
times over the years and the #7 cylinder would start to miss about a month later. You can
also hear a loud ticking noise when this happens at anything more than 1/4 throttle. I've
read about optis killing plugs and she did have the water pump apparently leak all over the
place for 3 months, though the car runs relatively ok. i did notice corrosion on the
terminals when i was putting new wires on it last. my questions is what should i replace?
i've seen rebuild kits thats are the cap and rotor and seals but i guess what im really
asking is do i need a new sensor or not, and is there anything else im forgetting.
also the engine is throwing an emissions code P0441 which when i looked up said it was an
emissions code stating system flow during non system purge. there looks like there is this
control box next to the intake manifold which i think is what needs to be replaced, but i
have no idea what its called so it makes it hard to order from GM parts direct...
I'm sorry this read was so long and am grateful for any help.
-Alan
new beemer and I took the trans am off her hands. No need to now fix all the problems it
had. I have done work on this car over the years and know the lt1 fairly well but not inside
out like i know the l98. my first question is I have changed the plugs on this car a few
times over the years and the #7 cylinder would start to miss about a month later. You can
also hear a loud ticking noise when this happens at anything more than 1/4 throttle. I've
read about optis killing plugs and she did have the water pump apparently leak all over the
place for 3 months, though the car runs relatively ok. i did notice corrosion on the
terminals when i was putting new wires on it last. my questions is what should i replace?
i've seen rebuild kits thats are the cap and rotor and seals but i guess what im really
asking is do i need a new sensor or not, and is there anything else im forgetting.
also the engine is throwing an emissions code P0441 which when i looked up said it was an
emissions code stating system flow during non system purge. there looks like there is this
control box next to the intake manifold which i think is what needs to be replaced, but i
have no idea what its called so it makes it hard to order from GM parts direct...
I'm sorry this read was so long and am grateful for any help.
-Alan
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Joined: Sep 2004
Posts: 0
Re: opti and non related emissions code
A consistant problem we see is a plug loosening up which then leaks. When they do, the untrained ear hears a tick. To me is't unmistakably a chh chh chh sound of the gases blowing past the plug. As soon as this happens, the cylinder misfires.
If you think about it, why would the ignition system have a bad effect on only one plug?
The only fix, and we've tried everything, is to put an insert in the head.
As far as the 441 code, either you have a vacuum leak between the intake and the evap switch, or the evap switch is malfuntioning, or the evap solenoid is stuck. Easy enough to test all 3. I would deal with the plug problem first then worry about this problem.
Good luck
If you think about it, why would the ignition system have a bad effect on only one plug?
The only fix, and we've tried everything, is to put an insert in the head.
As far as the 441 code, either you have a vacuum leak between the intake and the evap switch, or the evap switch is malfuntioning, or the evap solenoid is stuck. Easy enough to test all 3. I would deal with the plug problem first then worry about this problem.
Good luck
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