1994 hatchback dx. stock. engine had to be replaced. replaced with same type. soemthing happen with the throttle position sensor. replaced that. the check engine light is still on. obd1. do i have to do a hard re-set to clear the check engine light?

(car isnt liking the cold this year)

 

Just go to the auto part store and get the check engine light scan to figure what code its throwing and fix the problem.

 

Just try resetting it by disconnecting the battery cable, And if it's still staying on then go to AutoZone or somewere and have them run the code.

 

ive def tried the battery cable disconnect. still shows up. i will do the battery disconnect again later today. i know ive tried it before and it wouldnt go away. i think it was code number 7. i know its the throttle position sensor. reason is my friend install engine and we broke that sensor. got the sensor replaced and works but still showing up. so if i go to auto store. will there scan-tool say same thing or something else more?

 

did you set with a multimeter?

 

what you mean and what is that? guess i didnt.

 

you have to set the tps to a certain voltage when it is closed and when it is wide open.

 

reset it by diconnecting the battery, and
if it comes back on, then run the light to
see what the problem is and if tps comes
up you know thats your problem....

 

Just throwing this out there, but for obd1 you don't have to scan for a CEL. You can just use a jumper wire. <https://honda-tech.com/forums/showthread.php?t=878010>

 

its easy to get the code yourself. take off the glovebox. you will see a female connection with TWO wires from it just sitting ther to the right behind the dash. now jump that connection, insert piece of wire, paper clip etc into the metal pins(with ignition off) after jumping leave it jumped, turn the ignition on but dont start the car, and watch the engine light blink. 1 long blink is the first diget, the short fast blinks are the second. for example, 2 long blinks, 3 short blinks = code 23 understand?

 

thats right i forgot about this one...

 

i also forgot to mention, if theres more than 1 code there will be a short pause after the second didgit of each code and it will keep repeating all codes in a circle