This is the 3.0L Mitsu engine. It looks like this code is poor catalytic converter performance? So it could be the cat, or maybe the downstream O2 sensor or wiring? I have never really done much work on the van before, so I wanted to see if anybody has any experience with this.
If it does lots of short runs, take it for an "Italian tune up"
DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!
Italian tune up, haha!!
Pete Faggella 03 PT Cruiser, 2.4L N/A 5 speed. Daily driver. All stock with baby moon wheels. 85 LeBaron 2.2TBI auto. Hoped I'd see a difference with bumped compression, but I didn't. Still slow. "Life should not be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!'"
Eh. I cleared the code and went for some longer drives, but as soon as the catalyst monitor went out of "Incomplete" it tripped the code again. I watched the up- and downstream O2 readings while my wife drove for about 25 minutes, and it looks like the converter isn't working very well. While the downstream wasn't in sync with the upstream, it was jumping around quite a bit.
For a little while today, all three of my daily drivers had the check engine light on. :/ The SRT-4 cam sensor went out again, and I have an intermittent problem with the injector harness in the '89 CSX. Got a new cam sensor and wiggle the injector harness, so I'm down to just the light in the van again. I think I'll try putting the downstream sensor in a spark plug non-fouler, and see if that keeps it from tripping the code. I can't afford to replace the converter right now.
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