Can I run DP without...

[DONOTBUGME]

Originally Posted by NinjaT1985 It's not that I didn't read what I wanted to. I guess it kinda gets on my nerves that Mazda knew that enthusiasts were going to "mod" this car and yet they went cheap on the some of the most important parts that make modding possible. I know its to be "cost effective" and such and that is why these cars are very reasonably priced for what you get... but still

dude you bought a 22k dollar car, what do expect from it. I believe mazda did a pretty good job with the amount of power and handling we get stock. If you want to keep whinning 247----> cause no one here wants to hear it. Modding cost money and the further you go the it gets more expensive. Are you going to whine cause a bt is 1600 bucks?

[Karmat]

Could have bought a gti and would have needed a fuel pump to make less power. Have to pay to play.


Sent from my DROIDX using Tapatalk

[jack_hammer]

i don't think catless exhaust is compatible with 8000k HIDs.

[MS3G35]

If you wanted your car to be loud you should of bought a honda with a fart can on it.

[f-castrillo]

DP will throw a CEL, regardless of what fuel pump you're running. When you have an upgraded downpipe installed, logged fuel pressure dropping under 1600 psi is your main concern. The Gen2's ECU logic causes fuel pressure to drop even more if it dips under 1600 psi. When at WOT, you ideally want fuel pressure to hold at 1700-1800 psi. Some people's fuel pumps are able to hold on with full bolt-ons, while others give out early in the mod process.

[adlpb]

Originally Posted by f-castrillo DP will throw a CEL, regardless of what fuel pump you're running. When you have an upgraded downpipe installed, logged fuel pressure dropping under 1600 psi is your main concern. The Gen2's ECU logic causes fuel pressure to drop even more if it dips under 1600 psi. When at WOT, you ideally want fuel pressure to hold at 1700-1800 psi. Some people's fuel pumps are able to hold on with full bolt-ons, while others give out early in the mod process.

Not all gen2 DP's throw CEL's. I have a Cobb DP and zero CEL issues.

[TRex]

i will buy the DP from you once you blow....send me a pm when you do

[punisherB273]

i have been on this forum for less than 2 months and i knew the answer to this question as soon as i read the title. there is a thread that talks about it being dangerous to run a test pipe and intake on stock tune and cdfp. why would a downpipe be ok? the people that tell you it will be ok are the srt4 drivers that run blow off valves and pvc intakes

[f-castrillo]

Originally Posted by adlpb Not all gen2 DP's throw CEL's. I have a Cobb DP and zero CEL issues.

I stand corrected. DPs may or may not trigger CELs, but they are, more often than not, related to catalytic inefficiency, unplugged sensor harnesses, and the secondary O2 being too far out of the exhaust stream. I've never heard of a HPFP-related CEL with a new DP.

[adlpb]

Originally Posted by f-castrillo I stand corrected. DPs may or may not trigger CELs, but they are, more often than not, related to catalytic inefficiency, unplugged sensor harnesses, and the secondary O2 being too far out of the exhaust stream. I've never heard of a HPFP-related CEL with a new DP.

Right, pretty much any catless DP will throw CEL's on a gen2. The only 2 DP's that I've heard of not throwing CEL's are Cobb and cp-e, which also happen to be the 2 most expensive.

[f-castrillo]

Originally Posted by adlpb Right, pretty much any catless DP will throw CEL's on a gen2. The only 2 DP's that I've heard of not throwing CEL's are Cobb and cp-e, which also happen to be the 2 most expensive.

Just curious, are you running a map based on a COBB Stage2 map? I believe their OTS Stage2 maps have the "inefficient catalytic converter" CEL disabled by default, so that might be the reason you're not seeing a CEL.

With the price you pay for them, I would hope that the COBB and CP-e DPs would be CEL free though, without having to disable it via ATR.

[adlpb]

Originally Posted by f-castrillo Just curious, are you running a map based on a COBB Stage2 map? I believe their OTS Stage2 maps have the "inefficient catalytic converter" CEL disabled by default, so that might be the reason you're not seeing a CEL. With the price you pay for them, I would hope that the COBB and CP-e DPs would be CEL free though, without having to disable it via ATR.

I am running the stage2 OTS map, but I ran it for a few hours with only the stage1 map right after installing the DP and I still got no CELs

[f-castrillo]

I see, COBB definitely made a good piece then. I wonder if the secondary O2 bung location is a major factor in whether or not the ECU will throw the "innefective cat" CEL, or if it's the product of a higher-flowing cat by itself. I have the CEL disabled on my setup, because supposedly the CEL will show up on cold starts occasionally.

[NinjaT1985]

Originally Posted by broncojd78 i don't think catless exhaust is compatible with 8000k HIDs.

ok...

Originally Posted by MS3G35 If you wanted your car to be loud you should of bought a honda with a fart can on it.

Originally Posted by TRex i will buy the DP from you once you blow....send me a pm when you do

have you guys not read every post and seen that I decided against it and moving on to suspension, oh excuse me... I guess yall just read the posts putting me down and figured yall would chime in as well and be a bunch of followers

[jack_hammer]

aw, come on big guy! we're having fun here, no?

[iracer7]

I've never hit fuel cut and I've got a dp and Hypertech tune. No cel either....

You'll probably do it eventually anyway....just buy the stuff all at once vs 3 separate times and maybe your gf won't be so mad.

[NinjaT1985]

Originally Posted by iracer7 I've never hit fuel cut and I've got a dp and Hypertech tune. No cel either.... You'll probably do it eventually anyway....just buy the stuff all at once vs 3 separate times and maybe your gf won't be so mad.

you right... I found the HP for $347 shipped. Now I know that there is not as much to it as an AP but honestly. I don't know a lot about that stuff so the less I can mess up the better lol. Hypertech seems to allow just enough tuning without the chance of the user messing anything up.

[G26]

Originally Posted by NinjaT1985 you right... I found the HP for $347 shipped. Now I know that there is not as much to it as an AP but honestly. I don't know a lot about that stuff so the less I can mess up the better lol. Hypertech seems to allow just enough tuning without the chance of the user messing anything up.

O god, not another hypertech.

[jack_hammer]

Originally Posted by NinjaT1985 you right... I found the HP for $347 shipped.

Originally Posted by G26 O god, not another hypertech.

no he got the hyperpech. it's totally different.

[adlpb]

Originally Posted by broncojd78 no he got the hyperpech. it's totally different.

Is that the version that comes with the stickers that yield 15whp?

[Bucker]

Originally Posted by NinjaT1985 ok so no DP for me... I'm not doing all that. Changing FP internals and $500+ for AP. I guess I'm done with engine mods if this is all I can do without going through all that. On to more suspension... Thanks for those of you who aren't assholes and actually want to help... and offer good advice. Maybe I'll spring for the Hypertech eventually, a lot less and I'm sure I'd be happy with an OTS tune

HT isn't the solution, jackass. The comments above still apply. If you go DP and HT its the same effect, you most likely will need pump internals.

[clowncar]

Why is this guy so mad?