92Protege
August-17th-2004, 09:30 AM
#1
Registered User
Thread Starter
Join Date: Aug 2004
Posts: 5
92Protege
the 'check engine' was on suddenly during the driving when I turned at the traffic light and accelerated. I opened the hood and found nothing. This happened two times yesterday and today. Since I just changed oil recently, it should not be the cause. I am new on this mechanical work, anyone give me some suggestion to begin with? Thank you!
October-3rd-2004, 03:41 PM
#4
Registered User
Thread Starter
Join Date: Aug 2004
Posts: 5
I am a newbie to autos. what is the ECU and how to check this. I will do some google on this. My mileage per gallon is around 20 at local, so I am wondering it is the oxygen sensor problem. The light on always on when I am on speed over 45. but when I turn off and then reignite the engine, it will be good for a while. several minutes later, once the speed is over 45, the light will be on again. when driving locally, sometime it will also lighted. Now I have some time and I try to fix this. Thanks a lot.
Last edited by polynmr; October-3rd-2004 at 03:46 PM.
October-4th-2004, 11:56 PM
#6
Registered User
Join Date: Apr 2004
Location: Guatemala CA
Posts: 56
if you're doing 20 mpg there is something wrong, try to change the O2 sensor, there are not expensive and when you open the hood you'll see metal protector that has a hand (do not touch) and it says hot, there you'll see a wire in the down pipe that goes to the O2 sensor in the exhaust manifold or will be more easer if you go to a work shop and replace it.
October-6th-2004, 12:32 PM
#7
Registered User
Thread Starter
Join Date: Aug 2004
Posts: 5
I think you what you mean is buy the O2 sensor and replace by myself or ask the workshop(auto repairer) to replace it. I heard that the O2 sensor could be at the order of ~$200, if labor is added, woo.......
Thanks, I will try do my myself. what about the other one on the exhaust? I am told there are two O2 sensor. Thanks
Thanks, I will try do my myself. what about the other one on the exhaust? I am told there are two O2 sensor. Thanks
October-6th-2004, 01:05 PM
#8
Registered User
Thread Starter
Join Date: Aug 2004
Posts: 5
Horn on Protege
My horn died. I checked the horn pad under the steering wheel cover and tilted it up a little bit. Now I can hear the clear "click" sound once I press the steering wheel cover. I am wondering whether this is the horn relay probelm. Of curse, I have not checked the horn itself since I assume the death of horn itself is a rare case.