I’ve tried it and it still won’t fire on it. It will sputter a few times like it wants to fire but then just goes back to crankingIf it was me, I might consider some of that engine start spray, that you spray in the intake.
That's just a guess though, you can wreck an engine with too much of that stuff.
So it’s most likely fuel pressure or compression then?
Awesome, thanks man! I appreciate the knowledge.That makes sense to me.
Here's a thread about replacing the fuel filter and fuel pump.
First off I wanna say what's up y'all!?! I just recently bought my first ever Mazda last week and it ran great the first day I had it. Then on the 2nd day it ran great for the first 1/4 mile down my road to the stop sign and taking off from the stop it fell flat on it's face. So I tried pedaling...www.mazdas247.com
... Still need to check my fuel pressure though because I don’t hear my pump kick on but I still got gas where it should be.
I think it’s fuel pressure still. Not 100%,I was supposed to pick up a parts car Saturday morning but that fell through. Gotta wait until I get another alternator before I start messing with it again unfortunately. An alternator from an MPV would work,right?..I just went out to my car, put the key in the ignition, and turned it to run.
I didn't hear the fuel pump at all.
I don't know if I just couldn't hear it or if the ECU hadn't turned it on?
I'm pretty sure that the system can store pressure for a while (I think that's what the pulsation damper does?) and the fuel pump only kicks in when the pressure starts to drop.
So if you don't hear the fuel pump, that may be normal.
There is a way to turn on the fuel pump with a jumper wire.
You're supposed to use it to turn on the pump to check the pressure.
I'm completely guessing here, but maybe you could connect a jumper wire to bring it to maximum pressure then try to start it?
I don't know how the car monitors pressure to turn the pump on and off or if maybe the pressure would be too high to start the car, but I think I would try it if it were me.
I know that there is a PRC solenoid valve that is supposed to kick in the fuel pump to increase the fuel pressure for a hot start.
Perhaps there is a problem with that solenoid or system that is messing with your fuel pressure, assuming that you do have a fuel pressure issue?
Remember I'm just guessing so you'll have to use your own judgment.
(I can't upload pictures at the moment, but the info about the jumper wire is in the FSM on page 01-14-4.)
I'm thinking that your no-start situation may be because the ECU isn't turning the fuel pump when it's supposed to?
Or perhaps your fuel filter is clogged, along with a worn-out fuel pump, and your car can't get up to proper pressure?
Ok, sounds like you'll be getting to that at some point.Not yet,I was gonna do one after we found out it had spark and fuel but wouldn’t start. But I had to pull the alternator off and use it on the daily
That’s the worst part,I bought it not running from a kid that had no idea what was wrong with it. He said he was doing about 80 on the highway and it just died on him. When we tore it apart the first time it just looked like the timing belt stretched out and skipped a few teeth. The gasket really wasn’t too hateful but there was a crack in it so we replaced it anyway along with new head bolts. I’m leaning toward it being a compression issue since it’s got fuel and spark and still won’t fire with starting fluid,which sucks because I’ve dumped a ton of money into the car already and haven’t even got to hear it run. I was hoping it was just like a blown fuse for the security system but of course I couldn’t be that lucky lolOk, sounds like you'll be getting to that at some point.
Also, was this vehicle running well, right after you got it and before you did the timing belt? I'm guessing that it wasn't, because you discovered the bad HG shortly after the timing belt job, which should have caused it to be running poorly right from the get go.