Car: 1990 240, 2.4, 235k km (145k M)
Upon idling in line at the border today or cruising the endless parking lot looking for spaces last month, twice I got a CEL. The codes:
1. Rich\lean (2-3-2) and missing O2 signal [2 weeks ago]
2. 2-3-2 and injector fault (1-1-3) [today]
I cleared the codes two weeks ago, and they only came back today after idling in line. The car is obviously running rich, but only throws codes when idling or barely inching along.
After it happenee today, I hooked the + lead of my DVOM to the back of the O2 wire, and the - lead to the bolt holding the ground strap to the firewall. The engine was warm. The voltage swung raggedly between .866 and .224. Then, it started dipping just barely negative. I have no idea what to make of that and I have not found much online.
I cleaned the battery terminals and the ground bolt, the reading did not change.
Anyone know the deal?
Mike
Upon idling in line at the border today or cruising the endless parking lot looking for spaces last month, twice I got a CEL. The codes:
1. Rich\lean (2-3-2) and missing O2 signal [2 weeks ago]
2. 2-3-2 and injector fault (1-1-3) [today]
I cleared the codes two weeks ago, and they only came back today after idling in line. The car is obviously running rich, but only throws codes when idling or barely inching along.
After it happenee today, I hooked the + lead of my DVOM to the back of the O2 wire, and the - lead to the bolt holding the ground strap to the firewall. The engine was warm. The voltage swung raggedly between .866 and .224. Then, it started dipping just barely negative. I have no idea what to make of that and I have not found much online.
I cleaned the battery terminals and the ground bolt, the reading did not change.
Anyone know the deal?
Mike