Search results

Hey everyone I am getting three codes on my AP but the car is running fine no missfires or running rough I've cleared the codes and they come back again. Any ideas where I should start? I have small mods like Cobb intake, HKS BOV, HPFP internals and COBB off shelf tune. Thank you.

Did the o2 sensor fix your problem? I have the same issue. Thank you.

Hey guys an update, good news car is running great now. Turns out the guy who sold me the hpfp internals never told me the hpfp itself didn’t work all I did was switch the internals onto my old hpfp and it was all good. Rookie mistake, on the bright side I love this car even more now lol!

Thanks guys, I changed the hpfp but now it’s throwing code p0089 any idea what could be wrong? It’s also running horrible.

I was changing my hpfp when I took it out it was covered in oil. How bad is this what can I do?

Sounds good thank you I do have auto tech internals. Thanks for the advice.

Hi everyone I was looking to buy auto tech hpfp internals but figured I’d check if my car already has some, this is a picture of my hpfp. Can anyone tell if I have aftermarket internals or stock? Thanks in advance.

Yes he got it spot on lol thank you all for the help! Glad to finally take out the Mazda on the streets.

Finally got the mess sorted out, it was a fuel injector that was leaking took it in to the shop and they figured it all out.

No more codes but it’s still misfiring I am lost and don’t know where to go from here I will probably end up taking it to a shop this week

I changed the plugs gapped them to the right gap and switched all 4 coil packs, the problem went away a little bit but there is still hesitation/misfire when accelerating slowly. I did a compression test all cylinders read between 145-150 .

Thank you for the link I called dealership and they quoted me 105 a piece I’ll order it from that website and keep you guys updated! Another quick note, when I put the spark plugs in the guy at autozone told me gap was .36 but someone mentioned .28 would this cause the misfire to happen just...

Sorry for the late updates, I replaced the spark plugs it got a little bit better but the car still feels like it stutters when building boost. Where could I get oem coil packs? Thank you.

Hey guys I switched the spark plug to cylinder 1 and the misfire moved with the spark plug so good news! Do you guys know what the gap is for the new spark plugs? Thank you in advance.

Sounds good guys thanks for the advice I will go this later today and hopefully it is just the spark plugs or coil packs... thank you!

Just bought a 2009 Speed3, it turned on check engine light on code is P0304 for misfire on cylinder 4 the car stutters at higher rpms above 3000 any idea where I should start? I’m a newbie :(