pdiggitydogg

Someone thought it was the gsr TB on ls IM... that the iacv ports didnt match right
Well, the ports match exactly, except the gsr tb has an offshoot --> dremel the IM to match = problem NOT solved


AND the ****** is still burning coolant....
AFTER I resurfaced the head, had it checked, resurfaced the block, new HG, proper tq spec and order
Yet, theres no coolant in the cylinders
Oh and now theres oil leaking from between the block and head, drivers side....thats new
Want to blow this thing up.............

Blk00EJ8

Maybe a flat spot in your TPS value? ECU may be flooding your engine, hence the stall...

pdiggitydogg

No, i think that would cause an idle issue, or at least the car to run rich, but i dont have either of those issues

.ShawnD.

I had the same problem with my dseries.. I changed the PCV valve and adjusted the idle.. runs great now

pdiggitydogg

theres no pcv, endyn breather/catch can
but thanks for a different idea

d357r0y

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pdiggitydogg &raquo;</TD></TR><TR><TD CLASS="quote"> theres no pcv, endyn breather/catch can
but thanks for a different idea</TD></TR></TABLE>


I also have no PCV valve and I'm using a Moroso can (same as endyne just not modified with an additional bung). Maybe the can is the bad mojo?

pdiggitydogg

I doubt it, plenty of people are using it and no one that Ive seen complains about that issue

builthatch

what injectors and FPR? where is your fuel pressure set?

so after a slight/no vacuum situation (rev), you get a really high vac situation (come down) and rich condition that chokes the engine...

what happens when you drive in say 3rd or 4th at 3500-4kish then let off/ coast in gear? does the car buck or hesitate?

what ecu is this again?

Blk00EJ8

I meant maybe there isn't a linear voltage signal from your TPS. Say 0.5 volts is 0% and 4.5 volts is 100%. What if at 10% it was reading 4 volts or something instead of (in this example) 0.9 volts. The ECU would then flood your engine with too much fuel. Just a suggestion.

d357r0y

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pdiggitydogg &raquo;</TD></TR><TR><TD CLASS="quote">I doubt it, plenty of people are using it and no one that Ive seen complains about that issue</TD></TR></TABLE>

Agreed, I was kidding. I should have made that more clear.

pdiggitydogg

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blk00EJ8 &raquo;</TD></TR><TR><TD CLASS="quote">I meant maybe there isn't a linear voltage signal from your TPS. Say 0.5 volts is 0% and 4.5 volts is 100%. What if at 10% it was reading 4 volts or something instead of (in this example) 0.9 volts. The ECU would then flood your engine with too much fuel. Just a suggestion.</TD></TR></TABLE>
Ok, but what would cause it to happen on this engine, and not the one it was on previously?
Like I said, I used the same tb (along with the map and tps) on my d16 previously. All I did was disconnect electrical, unbolt it, and transfer it over. Wasnt dropped, wasnt shocked, etc. It should still be fine.
And Im in no way bashing an idea...anything new at this point is something

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by builthatch &raquo;</TD></TR><TR><TD CLASS="quote">what injectors and FPR? where is your fuel pressure set?</TD></TR></TABLE>
Stock 240cc, stock fpr. At idle its just above 40, open throttle its...I cant remember

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">so after a slight/no vacuum situation (rev), you get a really high vac situation (come down) and rich condition that chokes the engine...</TD></TR></TABLE>
I believe so
I can feather the throttle to keep it alive, but thats all i can do.
Ive started jump-starting it, in like 2nd or 3rd, if stalling on a slow stop - comes right back to life and doesnt stall out when i release the clutch from that...??wtf

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">what happens when you drive in say 3rd or 4th at 3500-4kish then let off/ coast in gear? does the car buck or hesitate?</TD></TR></TABLE>
Car just coasts, it doesnt fall on its face, unless I put the clutch in. No bucking, no hesitation, nothing..acts normal/like its supposed to

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">what ecu is this again?</TD></TR></TABLE>
obd1 P75

pdiggitydogg

ttt before class....

sicones

The idle control system in the ECU is supposed to see that the engine is dying and increase duty cycle on the IACV

what happens if you put on the AC or headlights??

pdiggitydogg

well the ac isnt hooked up right now, but i drove it tonight anyways and it had the same issues with the lights on

92ehatch

i have the same issue with my d16.

it stalls at idle sometimes.

ive done everything you have done, and then some.

only things i havent done is, ignition timing, fuel pump, ecu.

if you find out what it is causing the problem, lemme know. ill do the same for you.

pdiggitydogg

np
What really confuses me most, is that when i jump start it, right after stalling, it comes back to life and idles normally

I also discovered that if I brake slowly, and the rpm's stay around 1000 long enough (maybe 2-3 seconds), it will not stall either.

blaze the chemi

Is there a check valve in the brake booster line? I had a problem on my chevy S10 that was similar to this and I replaced a faulty check valve and fixed it. It's something to consider.

builthatch

y0!

i just remembered that one time, i had a torn diaphragm on my AEM reg and it would do the same thing. In fact, take the regulator vac line off of the intake mani and suck on it a little...do you smell/taste gas? it could be the problem. i have not heard of stock regs tearing but it could happen i'm sure...

under high vacuum (ie when its coming off of a rev or coming to a stop from low vac, it pulls fuel through the vac line into the intake mani, giving and over-rich condition and it'll stall)


Modified by builthatch at 12:00 PM 5/8/2007

pdiggitydogg

well thats a new, easy idea
might have to try that later today
It is an old regulator...

Theres something hard, imbedded in the booster vac hose, probably the valve.
I ran a regular line instead (reinforced) and it didnt change anything either

builthatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pdiggitydogg &raquo;</TD></TR><TR><TD CLASS="quote">well thats a new, easy idea
might have to try that later today
It is an old regulator...

Theres something hard, imbedded in the booster vac hose, probably the valve.
I ran a regular line instead (reinforced) and it didnt change anything either</TD></TR></TABLE>

i edited my post to say remove the regulator vac line from the mani and suck as opposed to taking it off of the reg and sucking lol

pdiggitydogg

Well...theres freaking gas IN the vac hose
I didnt have to smell too hard, i could see it around the edge.
I'll try the old y8 fpr later, see what that does

[fingers crossed]

1992cxcivicEG

sounds like the engine is running lean, check the fuel press. and replace the fuel filters....

pdiggitydogg

No it doesnt.
Like I said before:
Pressure is just above 40 at idle and filter is less than a year old...


Did you guys know that the d16y8 fpr and the LS fpr arent interchangeable? I didnt Gas everywhere... Mounting holes line up, but thats it
Oh well

builthatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pdiggitydogg &raquo;</TD></TR><TR><TD CLASS="quote">No it doesnt.
Like I said before:
Pressure is just above 40 at idle and filter is less than a year old...


Did you guys know that the d16y8 fpr and the LS fpr arent interchangeable? I didnt Gas everywhere... Mounting holes line up, but thats it
Oh well</TD></TR></TABLE>

haha...i almost made that mistake this weekend. i forgot they are diff, the sohc feed hole is offset to the bolt holes, whereas the dohc units have all the holes inline.

if you put the sohc reg on the dohc rail, you can see half of the feed hole open, which, as you found out = a mess.

if there is fuel in your vac hose then i'd be willing to bet the FPR diaphragm is the problem. BTW, what fuel pump are you running in that thing?

pdiggitydogg

stock y8 fuel pump