Well my car starts and idles fine with the Uberchip and 450cc injectors, but my ecu is telling me my O2 sensor is gone giving me a code 1 (OBD1). So while the car is running I unplugged to O2 sensor and there was no change indicating that the problem is coming from there some where. Also my a/f gauge barely indicates 2 leds. The O2 sensor has ~ 225,000kms on it, I blew my motor once and my HG another time with the same O2 sensor.

What do you guy's think?

 

come on guy's show me some luv hey.

 

bump

 

i dont get what the question is

sounds like the O2 sensor is bad and needs to be replaced, replace it and see if you still get the same problem

 

I replaced it with one from another civic and was still getting the same code and problem, so I don't know what the **** right.

I don't really want to replace a pricey O2 sensor if it ain't the problem ya know. I'm going to test it and see whats on the go.

What is the ecu pin on the P28 ecu. I ask this cause I noticed one of my pins is corroded and could possible be causing this issue.

I also also read of a couple of people running the Uberchipped P28 also throwing check engine lights/codes.

I don't ******* know! It don't help that there ain't no support for the Uberchip anyway! Hopfully the forum I started will be some assistance to the support issue....................http://www.nfimports.net/forums/inde...dd&act=SF&f=18

 

ok so if a good O2 sensor went in and same same error then its either two things

1. the ecu/chip is bad and thus throwing a bogus code

2. the wiring from the sensor to the ecu itself is bad.

solutions:
1. find a replacement ecu and plug it in, dont drive car but see if the code comes up

2. get a continuity tester and see if you are getting voltage from the sensor wire, but find the pin on the plug.

hope that helps

 

but if the ecu or eeprom program was bad woulden't she like not start, idle like crap etc etc. She starts a dn ildes fine, but when you rev it or get on the gas, its a no go.

Plus my A/F gauge just barely reads one led from the O2 sensor wire. so even if the ECU was fucked I should still get voltage from the O2 sensor if it was working right.

Plus like I said, when I unplug the O2 sensor when the car is going nothing changes, no better no worse, and she don't cut out.


Modified by Hybrid at 9:42 PM 6/3/2003

 

i had the same problem a couple weeks ago, my a/f guage would read 1 red light (lean). than 2 days later i got a cel (primary o2), so i swapped with a friends o2 (reset the ecu) and still got the code. so i put my o2 back in and didnt get a code for a couple days but my guage was still reading weird, so i went out and bought a new a/f guage. after the problem still persisted i finally broke down and bought a new o2, its been a couple weeks now without a problem. the weird thing is even with the car running with both the primary and secondary o2 unhooked my car still felt the same and ran fine.


btw: i got my o2 sensor from oxygensensors.com

 

oh yea and a easy was to tell if your o2 is gone is to check the voltage with a voltmeter and see if it is within spec. i ended up buying one after the fact.