Help, sputtering problem

[90LXCB7]

Okay, so far the h22 is running decently, not at 100%, but, I'm working on that.

Here are my questions:

1) when I first start my car, letting it idle, if I give it ANY gas, it bogs out, almost dies until it's warm. What could be the problem?

2) once my car is warm, I'll be driving along, as soon as I get to between 3,000 and 4,000, it bogs out, almost like a flat spot in a carburetor, but, after 4,000, things seem to be fine. What could be the problem here?

Every once in a while I'll get a cel, I checked it the other day, it was pouring, so I didn't get a lot of time to see what it was, it was either a 1, or a 10.

The o2 sensor and idle air temp sensor are the ones I used on the f22, had no issues.

I did the fitv bypass, everything else is hooked up, other than I didn't add the iab solenoid. I've read that by not hooking up a vacuum hose on the iab diaphragm, they'll be open all the time, not causing any issues, other than a loss of some low end torque.

So, what could be the problem?

Thanks guys, I appreciate it

[Tmo_BB6]

was it a long blink or a short blink?

[erik]

Things I would check:

1. Reset the ECU (Take ECU fuse out for 20 sec.)
2. Reset Idle
3. Check timing
4. Check vacuum lines (I had a similar issue with mine, it ended up being a vacuum line issue, one was on the wrong nipple and caused it to die every time I pushed the pedal.)

[Backwoodz Tuner]

Hmmm sounds kinda like maybe it has something to do with vaccum mix-up or something. Are you sure you got the map sensor and throttle position sensors mixed up. I know the B-series plugs are the same plug style. Jus a suggestion. Maybe you got a clogged injector that don't work well under certain pressures.Also how olds the gas u running. I haven't been round the site too much lately so I'm not sure if you've had it running for a while or you just got it going.


But first figure out the CEL code your computers throwing. Best place to start :)

[Domesticated]

ell i dont know how much of a difference it makes, but he did mention that hes using f22 injectors on the h. well at least last time i saw him he was...

[90LXCB7]

My h22 didn't have the map sensor on the throttle body, just the throttle position sensor. That may not be calibrated properly, not sure.

And I've checked several vacuum diagrams, the hoses seem to be hooked up properly.

On the check engine light, it looked like a short one, meaning the o2 sensor, but, why would it not work with the h22, but did with the f22? more exhaust with the h22? When the check engine light comes on, my car runs like ass, bad.

Every once in a while it does backfire, like if I'm cruising along, let off the gas, it'll backfire, which sounds like it'd be a timing issue, correct? I haven't messed with that, but, when we did the manual timing tensioner conversion, the timing was spot on.

And the gas is relatively new, less than a week old, and I'm using premium gas

On the injectors, I've talked to a few people that say the f series injectors should be fine, that I shouldn't need bigger injectors, so, I'm not sure there.

[Backwoodz Tuner]

Well dodn't the H22 motors come stock with 310cc injectors? I'm not positive but don't the F-series motors come stock with 240cc injectors?

[Tmo_BB6]

Yeah thats good you need to use premium or it will run like shit, or at least mine did. . .

And when you are talking about it backfiring do you mean like really loud backfiring or just small little pops?

[erik]

H22/Preludes require Premium only, unless you want to do damage to your engine.

I'm using my F22A O2 sensor and its working fine, I get a Fuel Management CEL once and awhile which does tie back to being the O2. I have a new one sitting here in my apartment, and they look identical.

What year is your H22 stamped with?

[Backwoodz Tuner]

Check this link out

http://www.honda-tech.com/showthread.php?t=2570285

Well looks to me you may be runnin a little lean since F-series have 235 cc injectors while the lowest cc H-series motor have 290 cc. Besides the H23A1 which do have 235cc. But you got a H22 correct?

[gotrice93]

running lean would also explain the whole backfiring also

[erik]

Sick, mine has 330cc injectors! I did not know this!

[90LXCB7]

Mine came out of a 92 to 95 Prelude, not sure exactly what year??

And, I was thinking I was running a bit lean, I've been looking into some DSM 450 injectors. Could that be the cause of the hesitation at around 3,000 rmps?

Oh yeah, on the backfiring, they're just little pops, nothing major.

Well, looks like I'll try to not drive my car a ton, since it's running lean, don't wanna burn any valves

[Backwoodz Tuner]

Yeah the only reason how I knew the H-series injectors pumped more , is because I heard there a good stock part up grade for D and B series builds

[Backwoodz Tuner]

Well 450's might be a little over kill, but yeah that could possibly be your problem man. Causing you to throw a code for your O2 sensor since your car may be running lean. And the weak or sputter response your getting when you give it gas.

[90LXCB7]

Hmm, this all makes sense.

So, looks like I need to find some stock h22 injectors. The injectors that came with my motor were dead, no gas output whatsoever. That's the reason I went back to the f22 injectors. I appreciate the help guys. Other than this sputtering issue, my engine seems to run great.

[Brian]

what ECU are you running?

[90LXCB7]

The stock p13

[90LXCB7]

Here are a couple vids of my sputtering issue. These were taken within a minute of starting my car for the first time this morning.


The first video is my car idling, not giving it any gas at all.

0621091258-01.flv video by whyteboy32 - Photobucket

The second video is what happens if I give my car gas.

0621091259-01.flv video by whyteboy32 - Photobucket

Not sure what the beeping noise is, something on my phone

[Brian]

that beep scared the shit out of me. I think I shit my pants.

It sounds like your timing is off.

[90LXCB7]

When we did the h23 tensioner conversion, all the timing marks were lined up perfectly. Not sure how the timing could be off? but, that is what it sounds like.

And I apologize for the beep. That scared the shit out of me when I was listening to them before I posted

[Brian]

loosen the distributor and see if advancing or retarding the timing helps the sputtering.

Are you sure you have the firing order correct on the spark plug wires? Also, make sure that you don't have a bad spark plug or wire. You may just be running on 3 cyls

[90LXCB7]

I believe the firing order is correct. It only does that until it's warmed up. And I'm noticing if I sit at idle for any length of time, it bogs out, almost like it's dumping a ton of fuel into the combustion chamber. I'm waiting on some bigger injectors, I would almost bet that one or more of my spark plugs may be bad, due to it running lean. I wanna get new injectors, see if that helps, then figure things out.

[90LXCB7]

So, today I went out, started my car, it was running like complete shit. It kept bogging out and died, did that 3 times. It FINALLY leveled out enough to be driven. Parked the car at noon, it sat all day. Fast forward to tonight, I got back to town at 10:30, got in my car, started it, it was still running like shit, bogging out and what not, had my dash lights and stereo on while my car was warming up, I noticed outta the corner of my eye that my clock on the dash reset to 1 o'clock, after that, my car leveled out, was idling beautifully.

The other day I added a new ground wire to my car, since I only had one. This one goes from the power steering bracket to the drivers side fender, it's only about 16 inches long, if that, I sanded the paint off the bracket, and the fender. The new ground is 4 gauge with heavy duty ring terminals. It almost seems like since I added the new ground wire, my car has been running worse. It's been too rainy and I've been too busy to do anything. I'll check it tomorrow.

What could be the problem? faulty ground??

[erik]

The ground could be why. It has a required amount of grounds...

[Brian]

Jr, you have the electrical diagram for the H22 for all the ground points?

[90LXCB7]

I don't have one, I've been looking, no luck.

I figured I'd need more than 1 ground?? I'll take the new one off and just run with 1

[Brian]

if you have a Yahoo or MSN messenger, I can send it to you through that.


Let me know. Yahoo ID is LilNykil and my MSN is LilNykil@hotmail.com. I'll be logged in.