ARGGGG.

o2 sensor has been changed out. No longer throwing any code other than 21 ( vtec solenoid unplugged).

I've checked just about everything I could have. Changed fuel filter, adjusted distributor timing. Went through like five dizzys. I've also made sure the fuel line is unclogged, changed fuel pressure regulators. All grounds. Checked ECU. Fuel Pump and all in working order, so is water pump. Timing belt side is as close as it's going to get if not perfect. Just about everything you can think of has been done.

If these last two options don't work-- i'm going to assume it's a bad motor and toss it.

Last two options --

Could this sputtering and dying be the cause of a clogged cat converter? The car will start, it will run, it even idled quite nicely after I changed the o2 sensor... but... if you give it gas, once it hits a certain amount of RPMs it sputters and bogs out. If you let it run long enough, the car will just die.

And B) On a B&M Fuel Pressure regulator.. is the it turned all the way up when the nozzle is all the way up or down? I dont have instructions with it and neither did the friend who brought it to me. It wasn't on his car.

 

if i remember correctly, turning the B&m shaft down increases pressure.. you need a fuel pressure gauge, cause you can be running way too lean or way to rich, which will cause the car to run incorrectly. If you can't get a gauge, try swapping it out with a stock on and see how it runs.

 

sounds like your car either too rich or too lean.

FYI get a STOCK Fuel pressure regulator put it on the rail. then set idle after your cold idle cycle finishes

 

Can you just throw the stock FPR back on.....having an adjustable regulator without a gauge isn't the wisest choice.

A clogged cat will cause problems....if you can find a pressure gauge, remove the O2 sensor and see how much exhaust pressure you have or just remove it altogether for a second to see if that is the problem.

 

Okay you all read me wrong.

The Aftermarket Regulator isnt even on the car.

Stock one is on there. I tried changing it out with another stock one... no good.

Now I have an aftermarket one. And I want to know how to adjust the pressure.

 

before you go and mess with it.. can I ask did you set idle and timing?

 

Yes. I Have. Same thing no matter what.

 

After all the steps that you just did i would say unbolt the cat from the exhaust maniflod and see if that works.

If still the same thing i would then check the timing and check to make sure the timing belt hasn't slipped a knoch

If all that is good i would then check the injectors they may flow fine for idle but maybe to restricted for the higher rpms

After that i would say take that bitch to a shop and have them hook it up to some machines (5 gas analyzer, scanners) they might tell you what could be wrong

 

make sure the plugs in the back of the engine aren't plugged in wronge. i had my IACV, IAT and the little purge valve in the back all mixed up. car would idle fine, but studderd like crazy up top.

might help ya out some. also get differnt fuel injectors and a different fuel rail and stock regulator. i mean even try one out of a dx they should all be the same.

 

Yeah thanks guys--

Im going out to unbolt the cat today. Waiting for a jack cause I can't find mines.

I doubt that this is the problem, but I guess it's worth a shot before I decide it's the engine and go and buy a whole new one AGAIN.

Damn...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bmcc72 &raquo;</TD></TR><TR><TD CLASS="quote">make sure the plugs in the back of the engine aren't plugged in wronge. i had my IACV, IAT and the little purge valve in the back all mixed up. car would idle fine, but studderd like crazy up top.

</TD></TR></TABLE>



if you just put this motor in, then i would recomend swapping the plugs around (on back of intake mani.) since theres like 3 woth the same plug

 

Also -- Vacuum leak Idea and Intake Manifold theory--

I wouldn't know where to start, but is it a possibility that I might have a Vaccum leak somewhere?

I put my hand over the intake manifold and it felt like it was going to suck the skin of my palm off... and the car started to die so I guessed that there wasn't a vaccum leak.

Any ideas on this?

I have a CX intake manifold on the car too. Not the d16z6. I'd like only those familiar with different manifolds and the effects of changing them to comment. Theories are good, but they haven't been helping much--

There's a coolant hose that isn't plugge up. That's because the z6 motor has an extra one for the manifold and the CX one doesn't have this. Think that having the CX manifold instead of the z6 manifold is a big problem?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGinNY &raquo;</TD></TR><TR><TD CLASS="quote">



if you just put this motor in, then i would recomend swapping the plugs around (on back of intake mani.) since theres like 3 woth the same plug</TD></TR></TABLE>

I tried that actually. Swapping the three plugs around. I guess i'll try it again but I thought that they'd throw codes if they were plugged in wrong?

Perhaps not. I'll do that while im outside and write down where I put which one so I can fumble through them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Civic Hx-T &raquo;</TD></TR><TR><TD CLASS="quote">

I tried that actually. Swapping the three plugs around. I guess i'll try it again but I thought that they'd throw codes if they were plugged in wrong?

Perhaps not. I'll do that while im outside and write down where I put which one so I can fumble through them.</TD></TR></TABLE>

toying with the vaccuum(sp?) lines might help too, just remeber where they are now incase that aint it

try getting a friend to stop by with similar intake mani. (i know my boys h22a is set up almost the same as my d16z6 and that was how i set my vac. lines and sensors

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Civic Hx-T &raquo;</TD></TR><TR><TD CLASS="quote">Yeah thanks guys--

Im going out to unbolt the cat today. Waiting for a jack cause I can't find mines.

Damn...</TD></TR></TABLE>

Be careful with those spring loaded bolts on the cat!1

 

the white plug goes to the IAT sensor.

ill get the colors of the other plugs soon.

also if your hand felt like it was going to get sucked to the manifold u have a leak and need it fixed. what intake manifold gasket did u use. and did u get a new one. using an old one is not a good idea and it will leak.

try placing a small peice of tissue around on the manifold, if it gets sucked twards the manifold u have a leak and need to fix it.

 

Yeah if you plug in the plugs wrong it won't run too good and die. Okay one of them is white it plugs in the white slot, play around with others, and see if you still are getting the CEL.

Oh yeah what CELs were you getting before and what ECU are you running?

And try to wire up the vtec because I think my buddies car was acting up when his vtec wasn't wired up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bmcc72 &raquo;</TD></TR><TR><TD CLASS="quote">the white plug goes to the IAT sensor.

ill get the colors of the other plugs soon.

also if your hand felt like it was going to get sucked to the manifold u have a leak and need it fixed. what intake manifold gasket did u use. and did u get a new one. using an old one is not a good idea and it will leak.

try placing a small peice of tissue around on the manifold, if it gets sucked twards the manifold u have a leak and need to fix it. </TD></TR></TABLE>\

So wait.. if my hand gets sucked and stuck to the manifold and the car shuts off.. that means I HAVE a leak or that means I DON"T?

I bought a new intake manifold gasket and head gasket.


And today-- Someone bought a compression tester and we did the test.. Compression results

165 170 160 165

Yay or nay?

 

Up for some info!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Civic Hx-T &raquo;</TD></TR><TR><TD CLASS="quote">
And today-- Someone bought a compression tester and we did the test.. Compression results

165 170 160 165
</TD></TR></TABLE>

The car should start a honda will start at about 125 accross the board.

do you ahve fuel pressure?
Spark?
main relay ok?
starter ok?
injectors pulsing?
have you taken a test light to anything to see if anything isn't getting powert?
Timing ok?

 

The car starts--.. it just wont' DRIVE.

And everything you mentioned. I checked.

:: new thread about compression. ::

Gonna make sure I get the info.

 

are you sure grounds are all done?

plug wires hooked up right?

 

to see if you've got a vaccum leak, get some carb cleaner (even wd40) and spray it around the intake manifold. if the rpms rise, it's getting sucked in somewhere.

also check your grounds!!

 

All of my grounds are fine.
I'll go get some carb cleaner and spray it around my intake manifold.. but I don't think I have a leak there. Who knows I might.

Yes.. plug wires are hooked up right. Not a thing wrong there.

I tried just about everything..

My compression test was really low though.. maybe that?

 

how low?