Question about A/F Ratio problem!!
09-25-2003, 11:54 AM
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Question about A/F Ratio problem!!
Hey , im running an autometer a/f ratio guage on my b17a in my EK hatch. The problem is that the guage works exactly how it should for the first 15 minutes of highway driving (Ie: it moves back and forth, etc.) After about 15 minutes of driving, the guage always drops down to full lean and then quits working all together. My only guess is that i have a faulty o2 sensor? Thanks for your help!
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09-28-2003, 03:08 PM
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NO codes... which really makes me wonder what in the world could cause this? I mean if the wiring was faulty in any way, it would not work at all. But, like i said before, it works perfect for about 15 minutes and then quits working altogether. I dont know if it makes a difference but im running an OBD1 p30 and i dont know if it checks for "circuit out range" reguarding the o2 sensor? Any suggestions? Please!
09-29-2003, 10:08 PM
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No it is far from now.. it is an old orignal jdm one that came with a swap. Probably a good bit of milage on it, etc. I will try and do the standard tests on the sensor but i would hate to spend the money on a new one that will do no good 
any help?
any help?
