I've got an 89 dx hatch with a d16z6 motor in it. I converted to obd1 and have the p28 ecu. I'm getting cel 1, which is the primary o2 sensor. I've checked my wiring many times. Here are the pins.

A25 - black o2 wire
A6 - black o2 wire
D14 - green o2 wire
D22 - white o2 wire

I'm almost positive that these are the right pins which leads me to believe that the o2 sensor itself is bad, but I replaced it less than 2000 miles ago.

The exhaust smells like I'm running rich, which could mean that I've destroyed the o2 sensor. I can also smell gas in the engine compartment and inside the car. When I get really close it smells like its coming from either the fpr or the injectors. The number 2 and 3 cylinder injectors are loose enough so that I can rotate them around in the fuel rail.

I have new injectors and an s-afc that I was gonna install when I put my turbo on, but I was wanted to get the engine running right before attempting that.

**Do you guys think that I should go ahead and put the new injectors in to see if my old injectors were the problem?

**Could it be the fpr?

**What else should I look to?

thanks.

 

bump for my rich ***

 

you most likely have the tps sensor wires backwards.

switch the outer wires around, dont mess with the middle one on the sensor.

 

I tried switching the tps sensor wires around, but now at wot the revs drop way down. at anything but wot the car acts normal (except for o2 sensor cel). Any other suggestions?

 

I thought you're suppose to splice one of the black wires with the green wire for ground (together), then white wire goes to O2 lead, then the other black wire to a switched power...

http://ludicrous2_0.tripod.com/how_to/oxy/

 

I converted to obd1, It is supposed to use a four wire o2, anyone else? I'm stumped

 

anyone?

 

damn, that sucks i hope you find some help c'mon h-t members do your thang help a homie out

 

Bump, keep this thread up until he gets help...

 

post in the EG forum. i am sure they will know about your O2 issue

 

stock or aftermarket FPR? is the vacum right?

 

its a stock fpr. I can't find any problems with the vacuum lines