ok after we got my fan wired up to a switch when irun my car and it starts to warm up the check engine light comes on and i checked the codes and its code 12 "Coolant sensor- low temp. fault" and it runs fine so whats going on just the light comes on! help!?

 

woops i ment code 15 i was thiking it was blinking 12 to show that it was in diagnostic mode. sorry

 

i am now also getting code 23 along with code 15. this thing is driving me crazy! it is now getting between 5-10mpg!!!! it runs fine until it starts to warm up then it starts to sputter and will not idle with out me holding it i neutral. i know i need new plug wires but this is kinda rediculus. ive checked everthing you can smell gas pretty bad too especially after it warms up. please help anyone. before it only would throw code 15 but now both and the problems i listed above!

 

Those codes usually indicate an open circuit, code 15-coolant temp sensor, code 23 air temp sensor. You may have created your problem in the way you wired up a fan switch. I would un-do the fan wire up job and recheck for codes, remember to erase them first. Double check the grounds to the intake manifold, they can cause probelms like this.

 

i got code 23 to go away it was a carb issue. i haad not been running a thermostat too but i put one in and still i get the code. i did reset the computer i even tryed the other computer i have still car runs like @$$ i think i might have an intake gasket leak but will that cause that code to flash? it smokes too like a grey smoke and im getting 7mpg if im lucky. next week i get my honda back from getting fixed so i will be driving it to save gasand so i can start body work on th T/A so that will give me sometime to tear down the top of the motor i guess and see what i find

 

Code 15 coolant sensor voltage high=open circuit=full rich, computer thinks its -40* so you get all the fuel it can give=7mpg. Fix your coolant temp sensor problem and you car will run better and give you back the mileage you had.