Faulty ECU/PCM?

Pipes

Member
:
Mazda, CX-7 GT
Hi Guys,
This is most likely a noob question but where is the ECU/PCM located in the CX-7?

I'm having issues with my CEL coming on after cold starts and some warm starts. After driving for a while it turns off and it may be multiple starts before it illuminates again. My local mechanic tells me its possibly a bad ECU but it will cost ~$350 to diagnose. My OBDII pulls the code is P0016: Crank-Cam position correlation (Bank 1 Sensor A). Funnily enough this mechanic replaced my entire timing system and crank sensor in January, the car has been back in the shop 3 times and they still haven't resolved the issue. Anyone else had this issue caused by a faulty ECU?

I feel they haven't got the timing right when they first did it and don't want to eat the cost of re-doing it.

Any help would be great!
 
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