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Drew, Super Mazda Tech.
Category: Mazda
Satisfied Customers: 2188
Experience:  19 yrs. experience. Mazda Senior Certified Tech, with Ford, Linc. & Merc. experience. ASE L1 Advanced Certified Master Tech.
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Installed an engine in a mazda 3. had to pull the crank

Customer Question

installed an engine in a mazda 3. had to pull the crank pulley. followed most of the procedure for chain timing except crankshaft holddown. lined up cams and verified tdc with screwdriver. cant get the car to run good, have codes p0012 if set right or p0016 and p0011 if i change crank pulley position
JA: Have you scanned the code? Have you tried to reset it?
Customer: yes disconnected battery to reset keep alive memory
JA: What is the model/year of your Mazda?
Customer: 08 mazda 3
JA: What year is your Mazda?
Customer: 2008
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: i have repositioned the crank pulley several times.
JA: Anything else you think the mechanic should know?
Customer: never pulled timing chain. only installed engine. is it possible the crankshaft is off
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Mazda Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Mazda
Expert:  Joshua Davenport replied 1 year ago.

Good evening. With these engines the timing chain has to be retimed every time the crankshaft pulley is loosened or replaced. The tool for this procedure holds the camshafts in place as well as the crankshaft. The slightest movement in the camshafts or the crankshaft gear will cause running problems and or codes to set.