I have an 89 renix that runs extremely rich. every sensor is brand new except the coolant temp sensor(which i will be replacing tomorrow) and the o2 sensor. it has the upgraded 4 hole injectors, fuel pressure regulator is good, however if i stomp on the gas too hard it soots out the tailpipe. Might as well be a diesel just wanna get this fixed cause it is killing my wallet -_-

 

I assume you inspected your airflow all the way from the grill to throttle body. My Mom had an issue like that on her dodge, airbox was full of hay/straw. I told her what I found and she said a few days before on the freeway a load was dumped over and she said it was flying everywhere.

PS. fill out vehicle specs in user cp, you will get more replies.

 

In order affecting mixture: MAP, CTS, IAT.

A slew of these sensors share the same ground point.......

Click on the link below and do Tips 1,3,4, and 5 before buying any more sensors.

also closely inspect the line from the throttle body to MAP sensor.

 

Yes, all of those sensors are brand new. And the line from the throttle body to MAP is clean with no blockage or breaks.

 

The Tips!!!!!

 

I see no link lmao show me tips

 

Frickin phones!! LOL.

https://www.cherokeeforum.com/f51/cr...x-tips-153657/

 

I have refreshed all of the ground points. the only thing i havent done was the last tip you mentioned where it says to connect the 3 brown and white wires to the one. the sensor ground im assuming, but if i already refreshed the ground points is this absolutely necessary.

Ps. new coolant temp sensor seems to be working better, now it only seems to spit out smoke when its cold and when it warms up it gets a little better, but still smells a little rich.

 

Again, what were the results of Tip 5?

 

Reading how the should be after fixing them, close to 0 ohms.

 

Okay. Connector refreshing?

 

So I pulled off the muffler thinking there was some kind of restriction, need to check injector plugs. Perhaps I crossed one or two of them. Other than that I need to check the map line, and o2 needs to be replaced. Since the renix only has a pre cat, if that's bad would it cause running rich? It is the only sensor not replaced yet. Running out of options and I really don't want to have to scrounge around trying to find stock injectors to put back in them -_-

 

This help?

 

I've got that diagram. Gonna check in an hour or so. Hopefully it does.

 

I know that my back two wires were swapped. Hopefully that helps a little? Other than that is either putting oem injectors back in or new o2 sensor. Just need the damn thing fixed -_-