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Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Mazda
Satisfied Customers: 47346
Experience:  16 years of experience
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I have a mazda 6 2003 first revelition on crank we have

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hey I have a mazda 6 2003 first revelition on crank we have injector and spark pulse and at cam sendor is 2.6 volts when it is supposed to be 5 volts I am in prosses to test vref signal at computer to see where the volts are going..any help

Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner past midnight.

Did I understand correct, after the first revolution of the engine when cranking you lose spark and pulse?

If you remove the VREF wire from the PCM, then turn the key on and test the empty VREF pin, is the PCM putting out 5 volts?

Customer: replied 8 months ago.
I will check it out in the morning
Customer: replied 8 months ago.
I will call in morning about 10am my. Time okay
Customer: replied 8 months ago.
What wire or pin is the vref signal I had a diagram but now I can't remember where it went

Can i get the engine liter size to get those diagrams to you?

Customer: replied 8 months ago.
Customer: replied 8 months ago.
is there a way to call me pacific time at some time between 9 and 5
Customer: replied 8 months ago.
i am allready home and away from car and verus pro scanner so how about thursday
Customer: replied 8 months ago.
Customer: replied 8 months ago.
you must be busy
Customer: replied 8 months ago.
I have a fax if needed to send diagrams

I can send diagrams here. I can not send them over a phone call.

The Brown wire pin 2H is the VREF

This is my 1st answer of what can be many. You the website and myself expect you to have a ~~~5 STAR EXCELLENT~~~ experience with my help. At the top of your screen is the rating box that you only get to use once. Please make sure to complete the mandatory rating when ready or reply and say "I am pleased with my answer". Not rating or rating 1-2 stars does not benefit you nor me in any way.

Thanks Moose.

Chris (aka- Moose) and 5 other Mazda Specialists are ready to help you
Customer: replied 8 months ago.
what pin is it on computer do you have a plug dia

Sorry I do not have a connector pin chart with my diagrams. You can find the brown wire and confirm your at the right wire by comparing the color of the wires next to it.

Customer: replied 8 months ago.
well we have 5 volts on the wire not out of computer

What voltage are you getting from the PCM?

Customer: replied 8 months ago.
Customer: replied 8 months ago.
my power probe lites up green like common but withe volt meter there is 0
Customer: replied 8 months ago.
I bought a new pcm from flagship one lifetime warentee and had locksmith do my key thing so it will turn over but low and behold same thing at first it wants to start one spark one injector

Sorry but I just can not figure this one out. I will remove myself from the topic so another can try.

Customer: replied 8 months ago.
Customer: replied 8 months ago.
sooooo what do now