how do you check for fault codes on the ECU?
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how do you check for fault codes on the ECU?
I have been having trouble starting my car since I removed my smog pump. My car is a 90 TII with 3in dp, 3in main cat replacement pipe, FCD, profec B, turbo timer, custom air intake, cone filter, N1 catback, air/fuel guage, and boost guage. After removing the pump the car seems like it has lost all fuel pressure at start up. Meaning to get the car started I need to give it some gas. After checking my work I couldn't find anything wrong, so I called Rotary Performance. They suggested that I check for fault codes. I'm unsure how to do this and would like some instruction. Should I try this or should I just take it to the dealer here in town? Please help.
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Thanks nashman69g. I really appreciate this. I hope it is something simple. I think I'm still going to have a Mazda mechanic look at it first though. If he can't figure it out I'll give it a try.
#4
Originally posted by BLK90TII
Thanks nashman69g. I really appreciate this. I hope it is something simple. I think I'm still going to have a Mazda mechanic look at it first though. If he can't figure it out I'll give it a try.
Thanks nashman69g. I really appreciate this. I hope it is something simple. I think I'm still going to have a Mazda mechanic look at it first though. If he can't figure it out I'll give it a try.
Ground the initial connector, then turn the key to "ON" (I know it says to NOT start the car, but I did that once anyway. Car idled at 300rpm , so DONT DO IT )
Observe CE light. Go to section 4 in the FSM, and look up the pulse pattern of each error code. Error codes will come smaller-number-first, and will loop until you disconnect the connector or turn the key to "OFF".
Find out what's wrong, correct it, reset ECU (unplug battery for 30"), check again. Simple, eh ?
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don't take it anywhere to get the codes. it takes 30 secs.
http://www.1300cc.com/howto/how2/codes.html
http://www.1300cc.com/howto/how2/codes.html
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Fault code check complete. I got no codes. What does mean? Is it that there is nothing wrong or could it be that the part that is bad just doesn't have a sensor? Please help. I don't want to blow my engine because of this.
#9
No error codes: either a) you did it wrong (not easy to do this wrong ), or b) you are correct when assuming that it could be something that isnt "detectable".
I guess its time to see an -experienced- rotary mechanic take a look at it. Dont let him charge you though for just looking
I guess its time to see an -experienced- rotary mechanic take a look at it. Dont let him charge you though for just looking
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