i have a 95 rodeo (3.2L)(at) I took itout 4 wheeling and half way through the trip it starting running like crap.At first i figued i just had gotten it wet,but after a week or so of driving it and a new set of plugs, im guessing its something more.


I know that it is running rich, it pours black smoke and bucks and studders when i give it any more than 20% throttle.Now here is the weird part THE CEL COMES ON AND IT RUNS FINE! i really dont wanna start dumping money in it, so any help would be awsome, thanks

 

ok i did a the test w/ the data link and i got 2 codes 1-2 and 4-4, so the 4-4 =02s lean and fule montering 9


the 1-2= no tach signle to ecm-no distributue refrance pulses


so would thid mean my o2 sensor could be bad? is there 1 or 02 senors on this rig, and how would i know which is bad w/o a voitomiture. last off what would cause the 1-2 code, what could cause this? thank you for any help

 

well i changed the o2 sensor, the only 1 i could find. I took it out and it runs like a champ again, but im still wondering andout that 1-2 code????