OK, here's what I got. B18 with a short ram manifold, mitsu turbo and a liquid to air intercooler. I have Uberdata running with 450's. Running 7 psi. I have had it running for a week now and have a code 43, Fuel system Delivery, put on a new filter and made sure the walbour was pushing at 40 psi. Now for the problem.

I still have the code 43, but over the last couple of day's it has been getting richer and richer, even to the point of boggy will not boosting. Plug color is black and it is right of the chart on the wide band. I have no adjustments with uber, same chip. Then today I get a solid cel and on 3.5 grand; safe mode. I removed the jumper, still has the cel.

Any idea's, All the grounds are good, the ecu is grounded seperately, the board looks good, no burned traces or components, I'm wondering if a sensor can cause this, I can't seem to find anything on the subject, compression is good.

Sorry about the long post, Any help is great.

 

Is the check engine light still code 43? Or do you get a solid check engine light now? If its solid its the ECU

 

I just went out and checked the codes again. When I drove the car home from work it was solid cel and only reving to 3.5 grand. normal operating temps on both water and oil. Now I have a solid cel with the chip, jumper in, but it revs right to redline, still abit rich. take the jumper out and I have a code 41, o2 preheater, and a code 21, vtec. chipped p28. Ok. But now everything is cold. Could the coolant temp sensor or intake air temp sensor cause this, my be o2?? going to go for a run around the block to see what happens.

 

Oh ya, when I came home from work, it was a solid cel even with the jumper removed, stock p28 map. Weird.

 

went for a ride around the block and made it about 400 m and she went right into backup mode. Then I stopped for a minute, stopped shut the car off, checked over the wiring harness leading into the computer, all ok. I pulled the jumper and fired up the car and no solid cel. shut it off and put the jumper back in and solid cel but it reved to redline. When to back up and pull onto the road and it went into backup mode again. The coolant temp was just starting to rise up. But far from operating temp.

Any help.

 

I was thinking the o2 sensor right away because that could make you go rich if it was crapping out. I also say this becuase an o2 sensor can go bad and not even throw a code.

 

bump