Hey Scotty, I have a 1994 toyota celica and currently studuying engeneering on the last year of the school and alongside working on a general workshop. So yesterday I was at school and my professor told me to bring in my car to test if it has any problems not with the obd diagnostic but with connecting 2 wires above the shock absorber from the drivers side and actually made a short circuit to check how many times the check engine light flashes to see the codes at auto-data. So no problems so far, then he dissconected the throttle valve(wire) and the refregerant valve (wire) and we got 2 codes if I remember correctly they were 22 and 41. So we put them all back in start up the car and while the engine is working my professor pulls out one spark plug wire and after five seconds the engine makes a weird noise and stops. we tested if the wires were giving the distributor power which they did and if the fuel injectors were giving fuel which they did. So his diagnosis was that the ignition coil which is IN the distributor (I think) got damaged/burnt. So we tow the car to his home and he finds from the same engine but from a corolla a second hand but same ignition coil/multiplier and changes it . The car is working but the check engine light is lit. Do you have any ideas what the damage might be? Could burning the ignition coil or taking out the spark plug or while testing with wires make any other problem on my engine? thanks a million in advance! I will send some pictures too if you haven't understood what I am talking about and sorry for my bad english. Thanks again and best of wishes to anything you do!
Thanks a lot! I disconnected the battery and I will let it sit and see if the check engine light goes off. If not then I will just do the same to see what the damage code is and look it up!
some professor, I can see wy he "teaches" about cars and dosn't fix them for a living. Odds are he damaged something inside the dist, but if it runs fine, ignore the lights. Means little on those old obd 1 systems