Help !Coils wont get power! Checked Coils ALL coils ok...confused..!!
02-20-2007, 01:59 AM
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Help !Coils wont get power! Checked Coils ALL coils ok...confused..!!
my car is at the shop now ...and we DONT have a MAZDA dealer in Bangladesh. can you guys help me out here.... two of the rear ignition coils are not getting power...switched the coils with the first two and they work so the port of the coils are not working. Any idea why? Anyone? pls help checked vehicle with scanalyzer and no CEL or DTC ...really confused....
02-20-2007, 01:31 PM
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the WANKEL made me do it
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His coils are fine. He put the 2 rear coils up to the front with the known good connector and they worked fine (I did read that right?, I hope). The problem seems to be with the the pcm not suppling the connector with the ?12v? it needs to fire the coil
Last edited by Mazda-Rati; 02-20-2007 at 01:40 PM.
02-20-2007, 06:06 PM
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Originally Posted by Mazda-Rati
His coils are fine. He put the 2 rear coils up to the front with the known good connector and they worked fine (I did read that right?, I hope). The problem seems to be with the the pcm not suppling the connector with the ?12v? it needs to fire the coil
Exactly. why does not the PCM give any DTC ? Could it be that the PCM is broken ?
02-20-2007, 06:33 PM
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Since there is no code I would check the wiring from the PCM to the coil harness. Seems like you PCM is bad. Are you getting voltage to the connector?
Last edited by Mazda-Rati; 02-20-2007 at 06:37 PM.
02-20-2007, 08:18 PM
#7
Originally Posted by Mazda-Rati
Since there is no code I would check the wiring from the PCM to the coil harness. Seems like you PCM is bad. Are you getting voltage to the connector?
So just check the wire first.
02-21-2007, 07:02 AM
#9
Hermitage Holdout
Seems to me that I remember a thread running around here a while back on intermittent issues with coil packs due to poor grounding as well. Could be something tied to the mounting points for the rears that is causing the issue no matter which coil packs are used there. I've also read here that the new coil packs that came out in the USA a while back were designed to improve grounding. Other guys have posted some DIY info about taking the coil grounding right to the battery itself.
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