SOLVED: P2251 O2 Sensor Code (Causing VTM code 77 Problem)
Hey team.
This one has been plaguing me for about a week now. 06 Ridge with 290,000km on the chassis and around 170,000km on a replacement engine.
It was intermittent at first, but now its constant and in the snow and sub-zero temperatures we have here in Calgary the Ridge is pretty useless to drive.
I pulled the codes using my OBD scanner and also the paperclip trick for confirmation.
So the MIL throws code P2251 (O2 Sensor Negative current control circuit/open bank 1, sensor 1) and the VTM-4 warning light throws Code 77, control module failure.
I've attempted to clear the codes, but they come straight back.
Are the two related? It seems the MIL comes on and the VTM-4 light follows it shortly after, normally when i've driven some distance.
Its been a while since the fluid was changed, probably around 30,000km of highway driving through the summer. My battery is also pretty old, but not having any trouble cranking even in -30c.
I'll get the fluid and the battery changed ASAP, but will this cure my ills? Or is this something deeper?
I had been driving around last winter with a P0420 Efficiency below threshold code, but it went away in the warmer weather so I just assumed the old sensors weren't enjoying the winter. It popped back up at the start of winter but haven't had that particular code re-appear since.
Maybe the old thing just isn't cut out for an Alberta Winter in its advanced age and i should just cut my losses and take the $2500 i was offered as a trade in? The way i'm feeling right now with the ****ing thing i could just throw a match and a gallon of petrol at the bastard
Any help or suggestions much appreciated.
Hey team.
This one has been plaguing me for about a week now. 06 Ridge with 290,000km on the chassis and around 170,000km on a replacement engine.
It was intermittent at first, but now its constant and in the snow and sub-zero temperatures we have here in Calgary the Ridge is pretty useless to drive.
I pulled the codes using my OBD scanner and also the paperclip trick for confirmation.
So the MIL throws code P2251 (O2 Sensor Negative current control circuit/open bank 1, sensor 1) and the VTM-4 warning light throws Code 77, control module failure.
I've attempted to clear the codes, but they come straight back.
Are the two related? It seems the MIL comes on and the VTM-4 light follows it shortly after, normally when i've driven some distance.
Its been a while since the fluid was changed, probably around 30,000km of highway driving through the summer. My battery is also pretty old, but not having any trouble cranking even in -30c.
I'll get the fluid and the battery changed ASAP, but will this cure my ills? Or is this something deeper?
I had been driving around last winter with a P0420 Efficiency below threshold code, but it went away in the warmer weather so I just assumed the old sensors weren't enjoying the winter. It popped back up at the start of winter but haven't had that particular code re-appear since.
Maybe the old thing just isn't cut out for an Alberta Winter in its advanced age and i should just cut my losses and take the $2500 i was offered as a trade in? The way i'm feeling right now with the ****ing thing i could just throw a match and a gallon of petrol at the bastard
Any help or suggestions much appreciated.
