9 Codes cleared... were they serious?
Thread Starter
On The Tree
Joined: May 2004
Posts: 161
Likes: 0
From: London, UK
9 Codes cleared... were they serious? P0135 - O2 heater bank 1, sensor 1
P0155 - O2 heater bank 2, sensor 1
I have replaced the rear O2 sensors with simulators - is this why this code is coming up? The rear O2 trace comes up with a square wave, which is generated by the Baker module. The front O2 trace is steady at about .48 at idle
P0412
P0418
Both AIR codes - I've removed this system
P0443/P0449/P0452 - EVAP codes. Again, I've removed this system too
P0704 - Clutch switch... don't have one as not using original pedal box
P0803 - Skip shift - it's unplugged
So, nothing to worry about, I think but will these codes reoccur since I've cleared them?
P0155 - O2 heater bank 2, sensor 1
I have replaced the rear O2 sensors with simulators - is this why this code is coming up? The rear O2 trace comes up with a square wave, which is generated by the Baker module. The front O2 trace is steady at about .48 at idle
P0412
P0418
Both AIR codes - I've removed this system
P0443/P0449/P0452 - EVAP codes. Again, I've removed this system too
P0704 - Clutch switch... don't have one as not using original pedal box
P0803 - Skip shift - it's unplugged
So, nothing to worry about, I think but will these codes reoccur since I've cleared them?
Originally Posted by robin427
P0135 - O2 heater bank 1, sensor 1
P0155 - O2 heater bank 2, sensor 1
I have replaced the rear O2 sensors with simulators - is this why this code is coming up? The rear O2 trace comes up with a square wave, which is generated by the Baker module. The front O2 trace is steady at about .48 at idle
P0412
P0418
Both AIR codes - I've removed this system
P0443/P0449/P0452 - EVAP codes. Again, I've removed this system too
P0704 - Clutch switch... don't have one as not using original pedal box
P0803 - Skip shift - it's unplugged
So, nothing to worry about, I think but will these codes reoccur since I've cleared them?
P0155 - O2 heater bank 2, sensor 1
I have replaced the rear O2 sensors with simulators - is this why this code is coming up? The rear O2 trace comes up with a square wave, which is generated by the Baker module. The front O2 trace is steady at about .48 at idle
P0412
P0418
Both AIR codes - I've removed this system
P0443/P0449/P0452 - EVAP codes. Again, I've removed this system too
P0704 - Clutch switch... don't have one as not using original pedal box
P0803 - Skip shift - it's unplugged
So, nothing to worry about, I think but will these codes reoccur since I've cleared them?
Thread Starter
On The Tree
Joined: May 2004
Posts: 161
Likes: 0
From: London, UK
Originally Posted by Black02SS
If you are seeing the a flatline on your front O2's and are still using closed loop, then I would replace the front's.
Could be that, could be O2s just going out, could be a break in the circuit somewhere, watch out for it again, if it comes frequently, like black02 said, your O2s suck.
Closed loop = search
Closed loop = search
Originally Posted by robin427
P0135 - O2 heater bank 1, sensor 1
P0155 - O2 heater bank 2, sensor 1
P0155 - O2 heater bank 2, sensor 1
btw Bank 1 means drivers side. Bank2 means passenger side.
Sensor 1 means front O2
Sensor 2 rear O2
Originally Posted by robin427
P0412
P0418
Both AIR codes - I've removed this system
P0418
Both AIR codes - I've removed this system
Originally Posted by robin427
P0443/P0449/P0452 - EVAP codes. Again, I've removed this system too
Originally Posted by robin427
P0704 - Clutch switch... don't have one as not using original pedal box
Originally Posted by robin427
P0803 - Skip shift - it's unplugged
or
disable the code in the tune
or
stick a resistor in there.
i prefer #1 since it kills the skipshift light too. (atleast in stock cars...)
Originally Posted by robin427
So, nothing to worry about, I think but will these codes reoccur since I've cleared them?
the front O2s will considerably effect how the engine runs. the rest of the codes you can ignore.
Thread Starter
On The Tree
Joined: May 2004
Posts: 161
Likes: 0
From: London, UK
Re: fuel tank vent - I've transplanted the engine into a Cobra - www.creffieldcobra.co.uk, I've got no MIL set up at the moment, and as soon as I've got HPTuners, I'll delete the codes permanently...
What difference to the running of the engine do dodgy O2s make?
What difference to the running of the engine do dodgy O2s make?
well, to me it sounds like the heater circuit doesnt have power.. its unlikely both O2 sensor heaters failed at the same time..
in anycase, when the O2s fail, the fueling goes really rich..(ive heard around 25%) this causes the engine to run a little rougher at idle, and your MPG goes to ****. long term driving like this accelerates engine wear, since the cyls get the oil washed off of them by the fuel.
in anycase, when the O2s fail, the fueling goes really rich..(ive heard around 25%) this causes the engine to run a little rougher at idle, and your MPG goes to ****. long term driving like this accelerates engine wear, since the cyls get the oil washed off of them by the fuel.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
