Bogging 6bolt PLZ HELP!!!

[gohan2058]

Ok, my symptoms are as follows:
Driving under steady speed, low acceleration, my car will all of a sudden start bogging down (kinda sounds like a Subaru)

If I let off the gas, the deceleration sounds normal, still sounds weird if i give it more gas.

If I clutch in, let it get to idle n sit there for a second, let the clutch out again, then it goes back to normal.

I've seen other posts kinda similar to this for 6 Bolts and Evos, not really sure what they figured out but last time I checked my plugs they all looked pretty healthy, I know the injectors should be good as they are almost new, and I don't know where else it could be coming from, I can't tell if it's throwing a code cause my 6 bolt swap has always had the CEL on since it's been done with no issues...SAVE ME! If anyone has any advice or at least things to start tearing apart to check on, lemme know

Your responses are much needed and appreciated!

[Speedfreak]

Check for boost leaks. Then swap a set of known good spark plug wires to see if those are good/bad. That's the start, see what happens, and report here.. Then you'll get more advice on what to check next.

[gohan2058]

Not leaking boost anywhere that i can find, and I've tested all my wires and they all get good spark. From what I've read I've seen people post anything from the crank angle sensor to the coil. No one really had a definitive answer as to whats wrong though.

[CarPsyco84]

So is this a single cylinder misfire or the whole engine bogging down? Do you have a logger and or a Wideband? If its spark related it usually gets worse when its on boost, but it depends on how much boost and the fuel your running. Check your spark plug gap... should be like .028"-0.32" Or just get new ones if they are old. If you could figure out why your CEL is from that could be helpful.

[gohan2058]

i think it's a single cyl, the engine stays running, turbo still spools but very slowly, and it feels like the car is virtually powerless. Sounds like a WRX where the exhaust isn't a constant hum but rather "sputters" for lack of a better word.

[aaronspeed]

Sounds like a weak fuel pump.

[19TsiAwd90]

bad coil maybe

[gohan2058]

I'ma check the coil today....also I have an aeromotive FPR and a wally 255 pump (doubting the pump is bad cause these have been really good to me in the past)..what psi are you guys running for fuel pressure at idle?

[Pushit2.0]

How was the 6 bolt swap done? I would guess you are getting a random cylinder miss fire code. Most 6 bolt swaps only switch the ignition firing but do not switch the fuel injector firing thus a random miss fire.

~John

[way2fastalon]

sounds like the knock sensor my car did the same thing no power slow spool faulty knock sensor the ecu goes nuts with out it retards timming adds a ton of fuel get misfireing poor acclel ... idk check it out swap with a buddys and see stock fuel pressure in a 2g is 42 psi

[CarPsyco84]

Originally Posted by Pushit2.0

How was the 6 bolt swap done? I would guess you are getting a random cylinder miss fire code. Most 6 bolt swaps only switch the ignition firing but do not switch the fuel injector firing thus a random miss fire.

~John

They changed the firing order on 7 bolts?

[asshanson]

No, the CAM sensor is reversed on 1g and 2gs. On 2g's it's on the front of the motor, behind the cam gears. So you have to switch the plug order 1/4 with 2/3 and also the injector trigger wires on the ECU. Or if you have link you just hit the "invert CAS" button.

Also since the the 1g CAS isn't the same style as a 2g, you'll get random misfire codes if you're just using an AFC, so you have to have link disable those codes.

This happened to my car for 2 years before I finally fixed it, the symptoms sound the same. If you don't already have dsmlink, buy it.