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In my case ( I have a mazdaspeed 6) the ECU is below the steering column, not a big deal to remove it but if your ECU is like the mazdaspeed 3 located next to the battery it's a really simple task literally easy as 1 2 3 remove the old one, out the new one and program it. The programming just...

Yes I have, it was a bad ECU. found one used from Ebay for 50dlls + 70dlls for the marriage and problem solved. What I did to determine that it was my ECU causing the problem was with the car running tap a cable from the negative of the OCV cable and the ground it to the chassis and hear a...

*SOLVED, it was a faulty ECU, now the car pulls hard, indeed, it was a combination of problems (Bad ECU, oil leak to VVT gear)

I bought another MS6 ECU, i'm gonna report results when swapped and programmed.

Also I ran a cable from ECU pin 4s to the OCV connector negative pin and nothing...

Lucky me I found those pages on a forum, I test one pin that have 12v with a test light ( it turns bright) has enough amperage to move a solenoid. If I measure the same 12v cable from the OCV connector connected to OCV the voltage drops a lot, the test light shine so dim. I got continuity with...

I will do that. I just test for continuity between OCV connector (both pins) and both of them lands on the same pin of ecu connector. I don't understand whats going on here.

Also I test the voltage from the OCV connector and the two cables have 12v, it is not supposed to one be positive and the other one negative?

Hello guys, I need your help, my 2007 MS6 have p0012, the PCM is not sending ground signal to the OCV, if I manually add ground to the valve the VVT moves. Is there any ground related to the OCV? Anyone know if the ECU from mazdaspeed 3 is compatible with mazdaspeed 6?

I have the same problem on my speed 6, ECU no sending ground signal to Ocv, did you find the problem?

*SOLVED* It was the fuel pressure sensor, the one that others say that is compatible with mazdaspeed 3 fuel rail (Bosch 0261545038) for me it wasn't compatible because it was reading low and making a noise at cold start, and actually it is physically different. I went to the yunkyard and grab...

Thats what I wanted to know, if p0012 is related to HPFP pressure. Car's running great out of boost, fuel demands are met. I compared the HPFP pressures out of boost with my friend Mazdaspeed 3 and are the same. Also, I ran the car with spill valve disconnected and ran great. The AFR's at WOT...

Also I did timing chain job I just saw a video from Youtube called ''mazda p0012 CEL DTC cause (for those who tried everthing)'' that basically is a leak from the intake camshaft to the VVT, I removed my valve cover and spark plugs and give it a crank, recorded a video and I have exactly the...

Hello guys, I have a 2007 Mazdaspeed 6 that can't pass hpfp 1487 at WOT, this is what i've done so far to try to fix the problem: *switch the whole HPFP borrowed from a friend (I have corksport fuel pump internals in my hpfp in good shape, no scuffs or anything in the internals) *in tank fuel...

No cats and custom tune. When I started with this problem it was a coil connector, replaced it and the issue was gone, but now is doing the same.

I'm having the same issue, but for me it only happens after 5k in 2nd and 3rd gear at wot. My car is modded, at first I thought it was a boost cut, so I lowered the boost a little bit but it did't help. I will change coil packs with a friends MS3 and data log.

I have a Tactrix cable from my last Impreza, I will give it a shot to see if it works on Versatuner software and do the log.

Another question, at WOT and at 25psi the AFRs are 9.23 or something like that and then at idle it goes to 14.xx, is this good right? What I mean, is it safe to do pulls?

I'm very positive that it's tuned, the turbo is a CST4 Corksport , and the car has launch control and no lift shiftting, also one day I accidentally activate something like a valet parking. So, I found this boost controller solenoid with the top broken, and also the connector from ecu was...

I will download versatune and buy the cable, do you know what cable is it?