Car stuck in open loop
#1
Car stuck in open loop
I've been using my brother's Scangauge2 on my D16Y7-equipped 98 Civic and yesterday I noticed it showed that my car never goes into closed loop operation. I wonder if this is related to my P0135 code? The car still gets pretty good fuel mileage although I think it could be a little bit better. Also, I don't know if it's related to being stuck in open loop, I notice the car seems to be lacking in low end power.
#2
Closed loop operation means that the ECU takes readings from the primary oxygen sensor and uses them to tune the mixture. So with a problem with the sensor, closed loop operation is impossible.
All Civics lack low-end power. Don't expect proper operation with the CEL on and a code set though. After clearing that up, you should also check the spark timing.
All Civics lack low-end power. Don't expect proper operation with the CEL on and a code set though. After clearing that up, you should also check the spark timing.
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cdblack1990
Mechanical Problems & Technical Chat
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01-22-2008 04:39 PM