Is it a recall so everyone gets new pump and injectors or is it just if you have issue and you have warranty they replace items, also if you have bad injector do they replace all 4 or try to figure out which is the bad one? What years are affected?
Is it a recall so everyone gets new pump and injectors or is it just if you have issue and you have warranty they replace items, also if you have bad injector do they replace all 4 or try to figure out which is the bad one? What years are affected?
I wouldn't say "can't" but the fueling logic is different in that when fuel pressure drops below 1600psi (or so) it just dumps fuel into the engine further lowering pressure but also making the engine go really rich which prevents detonation which is the cause of zoom zoom boom. The first gen would just let the pressure continue to fall and consequently the AFR's would continue to rise until...boom.
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Nope you cannot blow the engine with the fuel logic that is present, Hence the first mod needed to be done before any combination mods is the HPFP. You will not blow a Gen2 engine from leaning out with this logic that's 100%, you will hit a wall once your fuel pressure drops below 1600psi and then logic increases pulse width and you get more fuel from injectors just being at max pulse width and you get robbed of any power due to this logic! Just read up on Cobb tuning website it is explained in detail there!
Now if there is another mechanical issue with the car yes you can blow the engine, like no oil, low oil viscosity, VVT chain stretches and you jump some teeth and valve hang open etc... But to blow engine due to leaning out like a gen 1 that's modded like a MO FO!! without a pump upgrade never! Now this would be a good question to ask if you have a Cobb AP if those tunes take away this fueling logic? I doubt it, but none the less would be a good question.
P.S read the FYI in the Cobb section or their forums you will find the truth, reading other forums is mixed with fact & fiction!
So the question is was the member on stock tune? If the aftermarket tune takes away this fueling logic or this safety feature then monitoring fuel pressure is critical but then you would have to get a HPFP to ensure you do not blow your engine while using an aftermarket tune.
A stock car, with a stock tune or with an CAI,TIP, and a properly functioning stock HPFP will never blow an engine you might hit a wall when fuel pressure dips bellow 1600psi if you put CBE,DP,TMI/FMI but you car will not blow up due to leaning out on a stock tune you will just keep hitting PCM limitations!
PROOF this Gen2 owner on a stock tune had fuel pressure drop below 1600psi he did not lean out and damage his engine but hit PCM generated limitation, he parked his car then drove it to the dealer, new pump and engine is fine. I would believe that the CBE exhaust paired up with his other mods and a inferior pump being pushed to its limits was the cause for failure. There is a variance from pump to pump as to what mods will show the stock HPFP weakness.
So the dealership ordered the hpfp last Friday , still waiting for them to call me to tell me they have it in and they'll install it. I've been driving my car around, everything seems fine, turbo hasn't been surging or losing psi while wot.
I'm assuming the same thing will happen with the new hpfp they are gonna install as the original one I have now because of my mods?
Or will this hpfp be a better functioning one that can withstand the mods I have now.
I'm hoping the pump was defective and the new one will be alright until I can upgrade in the spring.
It will be the same as the stock HPFP, they prolly had a defective batch of HPFP so they are replacing them with new ones that aren't from the same manufacturing date. You should be fine but I would jump on some upgraded internals or a complete HPFP upgrade when they go on sale for boxing day or any other sale.
It will do the same thing go get an upgrade
you might of had a really weak pump? hopefully you get lucky and have no further issues if there was a problem as everyone says with the HPFP from a specific date. If this is all the mods you are going to do I hope the new pump will flow enough to keep you happy! Buy a monitoring device or an AP to watch and log your runs with new fuel pump.
Good Luck
Thanks guys, I really hope the issue was a defective pump and the new one will be up to par.
Appreciate all the feedback, I know if I posted this thread on mazdaspeedforums I woulda got a strip ripped off me lol
I hear you bud as long as its not "I want to install a downpipe, do I need to upgrade my fuel pump?" you won't get your anus ripped to much lmao
New hpfp was installed almost 2 weeks ago, car is acting up again.. Internals are getting ordered for sure. In the mean time while they are getting shipped think It would run a little better if I switch the intake and bpv to stock?
Off to the dealership to sit till Thursday
Hahaha owning a Speed, two pics come to mind......owner in the engine bay and.......flatbed.
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got it parked at the dealership for now, it opens back up thursday.. blah
quickly switched back to the stock bpv.. drove it around the lot afterwards, drove a little better but still some hesitation.
hope they will cover under warranty again. lol
alright ill let the dealership know im going to return it to stock (except cbe) and order internals.
im assuming the stock hpfp can handle just a cbe?
It comes down to the car itself. For example a friend of mine with a 2010 speed (same as mine) had an intake prior to the pump and his car drove fine in any condition. My car had the same intake and in 3rd gear above 4000rpms it would stutter like crazy prior to the pump. Just take it easy until the internals are in
Ok, these cars work in mysterious ways lol
I do have a used cpe cai installed on the car right now.. I'm sure the car would work a little better with an Sri