Rep Power: 0

97 Civic LX
My check engine light will not go off, and my inspection is out!!

P0301
P0303
P1300
P1399

I understand that these are all misfire codes, I have replaced the wires and plugs, and checked the distributor and rotor they looked good,

When I reset the computer sometimes the light will come on instantly blinking at first, when it does the car idles very low.

And then other times when I reset the computer the car will run for a day or two with no light, when it does the car idles above normal,, after those few days the idle eventually goes back to very low and the light comes back on,

Today it started Idling way too high and I realized the car was overheating at the drive through, I opened the hood and realize the back up fan was not coming on.. So I pulled the relay and tested the fan with a jumper wire and it came on.

When I got home I tested the relay, and the test was good, I've also swapped them out with other relays, and the fan still won't come on, is there a temperature sensor other than the one for the gauge?

Any help is much appreciated
Thank you

 
Rep Power: 0

For the backup fan, did you check the sensor located on the thermostat mount? Also, check all fuses etc? Worst case it could be burnt out fan motor.

For the other problems, idk, o2 sensor maybe? When those go out they tend do cause weird **** to happen. Just my two cents lol.

 
Rep Power: 0

No it's not the fan I was able to get that to come on with a jumper at the relay box,

I've replaced the sensor with a used one from another engine I had,

I don't know if it worked, I think it's too cold now to get the car hot enough.




I restarted computer again with my handheld and check engine light came on immediately

p0301
Cylinder one misfire
p0303
Cylinder three misfire
p1300
Manufacture control ignition system or misfire
p1399 "pending"
Manufacture control ignition system or misfire


The car is idling low again......


Work done well I owned the car...
I pulled the motor to replace the tranny and Throw out bearing
and clutch
Alternator
Timing belt
Water pump
O2 sensors-four years Ago
Cadillac converter-four years ago
Adjusted valves Clarence
Also repaired a broken wire in the intake wire harness<-[fixed a O2 trouble code i had and stopped my lights from flashing],

 
Rep Power: 245

Must be that "Cadillac converter".

Seriously, check your firing order.