Mazda Repair Questions? Ask Mechanics for Answers ASAP
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner till early morning.
Have you checked the fuel pressure when cold?
When cold will it start at full throttle?
When trying to start when hot or cold do you not touch the throttle when starting, your not supposed to, nor need to?
So far my recommendations are to:
Throttle applied when starting can bypass a bad IAC valve and can help with a flooded issue, since you have new injectors I doubt any are leaking and flooding the engine while off.
Please read this:
Thanks for using Just Answer, Chris
Bumping meaning jerking like it has the hiccups?
This running hiccup issue looks to be a misfire, possibly caused by the ignition coil weak and failing.
Keep in touch on the results.
Hello again Chris here,
You can check the cylinder compression to confirm it is timed correct.
Compression concerns from timing being out of specs can cause a hard start and hesitation concerns.
Correct, a compression test to confirm all cylinders show about the same and above 115 is the test to perform.