Car doesnt start no codes on or spark why?
Asked by Arnold Sep 13, 2020 at 11:13 PM about the 2007 Mazda MAZDA3 s Grand Touring
Question type: Maintenance & Repair
I have a 2007 Mazda 3 2.3L and when starting the
car it'll crank but doesnt start, I've checked the
coils and spark plugs with a test nobe test light and
there is no spark. Any advise to resolve this
problem will be very appreciated thank you for any
one that replies to my issue.
5 Answers
Laoaznkev87 answered 3 years ago
I would think to follow the procedure in the factory service manual on replacing the crank sensor. The cam sensor could be the case, re-timing the motor and replacing the crank sensor and the cam timing is crucial,and if either of the 2 are out of range it will suspend spark to prevent engine damage.
Laoaznkev87 answered 3 years ago
On a friends Mazda 3, After checking fuses and ground wires there was a probability of the ecu being bad, but we popped the valve cover and found the intake cam out of time, it was almost 45 degress off. Found it kind of strange that we were able to get 120psi on the compression test. Anyway, re-timed the motor and it fired right up.
Awesome guys thanks I highly appreciate the replies tomorrow I'm going to do cank sensor cam sensor and timing. I will keep this post updated will results for anyone in the future that has these issues. Mazda is the.most complicated vehicle I have ever worked on but I love there dimensions 360.
Guru95XM4H answered 3 years ago
my mazda 3 ZY 1.5 L Engine crankshaft position sensor has near coming coil spark...engine cooling idel ok.. after coming engine normal temperature is engine stop..
