Thought I was done, NOT! More problems
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Thought I was done, NOT! More problems
With Jons help (FIC) I was able to figure out how to install my fuel injectors.
My car was ready to start today.
I turned the key on to set the fuel pressure but it stayed at 50 no matter what I did.
It needs to be at 44 but I screwed the AFPR all the way in and out and it stayed at 50psi.
I thought maybe I had a bad Gauge so I called Firevette and he came over with his.
The first thing we noticed was the battery was almost dead so we hooked up jumper cables to my wifes car.
It turned over but the belt made noise.
We found a locked up air pump.
can this thing be gutted out somehow?
We pulled the belt, the engine started but was running rich.
We checked the pressure with the engine running and the AFPR vacumm line off.
IT WAS 50PSI again! Firevettes gauge made no difference.
So to sum it up:
I have a bad battery (easy fix).
Can the AIR pump be gutted?
WTF is up with my fuel pressure?
My car was ready to start today.
I turned the key on to set the fuel pressure but it stayed at 50 no matter what I did.
It needs to be at 44 but I screwed the AFPR all the way in and out and it stayed at 50psi.
I thought maybe I had a bad Gauge so I called Firevette and he came over with his.
The first thing we noticed was the battery was almost dead so we hooked up jumper cables to my wifes car.
It turned over but the belt made noise.
We found a locked up air pump.
can this thing be gutted out somehow?
We pulled the belt, the engine started but was running rich.
We checked the pressure with the engine running and the AFPR vacumm line off.
IT WAS 50PSI again! Firevettes gauge made no difference.
So to sum it up:
I have a bad battery (easy fix).
Can the AIR pump be gutted?
WTF is up with my fuel pressure?
Last edited by ch@0s; Apr 13, 2009 at 10:23 PM.
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
Chaos call Control. (who's old enough for that show? Anyway you have a bad AFPR or the cup is assembled wrong. Even if you got a giant pump the reg should break the pressure and return the fuel to the tank maintaining what its set at. Its rich because you have too much rail pressure. There is a pump delete pulley but gutting it is possible Wheres agent 86 he knows how to gut one
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
i don't know which type you have but basically there is a adj screw that tightens the spring against the valve.. the valve should move freely with the spring against the diaphragm. there should be something up top that when you screw in the adj screw it tightens the spring. sounds like thats not happening with yours.
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
i don't know which type you have but basically there is a adj screw that tightens the spring against the valve.. the valve should move freely with the spring against the diaphragm. there should be something up top that when you screw in the adj screw it tightens the spring. sounds like thats not happening with yours.
I put the washer on the spring and the cap and screw in...*shrug*
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
so you have the stock valve still in the rail? it must be clogged on the bottom. take it out and make sure the hole in the bottom is open. Is the diaphragm in right, not upside down or something. I don't know because i never had one do what yours is doing. When its working properly a few turned either way changes the pressure quickly
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
so you have the stock valve still in the rail? it must be clogged on the bottom. take it out and make sure the hole in the bottom is open. Is the diaphragm in right, not upside down or something. I don't know because i never had one do what yours is doing. When its working properly a few turned either way changes the pressure quickly
looks like that was the prob not sure yet tho.
I also ordered a smog pump 46 bucks at auto zone.
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Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Started it yesterday.. runs like c**P
so, I put the new regutor in adjusted fuel pressure to 46 psi
tuner sudgested 44 but the screw hits the plenum at 46
set the timing to 6 degrees
and it runs very bad(missing and no power)
I drove it around the block and put it away
I was really tempted to kick it a few times
tuner sudgested 44 but the screw hits the plenum at 46
set the timing to 6 degrees
and it runs very bad(missing and no power)
I drove it around the block and put it away
I was really tempted to kick it a few times
Last edited by ch@0s; Apr 17, 2009 at 03:07 PM.
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
before you kick the s**t out of it.. Did you tune the ecu for 26lb injectors?
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
but it did for a minute when we first started it and ajusted the regulator
maybe the plugs and o2 were fouled like what happened to Firevette
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
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From: Cumming Ga
just for kicks, those injectors are 24lbs at 39.15.. you set the fuel pressure at 44, was that with the vac hose on or off, if the hose was on it really is 49, go set the reg at 36 with the hose on and see how it runs,, does it idle smooth? you say it runs bad, describe it
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
just for kicks, those injectors are 24lbs at 39.15.. you set the fuel pressure at 44, was that with the vac hose on or off, if the hose was on it really is 49, go set the reg at 36 with the hose on and see how it runs,, does it idle smooth? you say it runs bad, describe it
I can't go lower the bolt hits the plenum
It's missing really bad and has no power
Safety Car
Joined: Apr 2002
Posts: 3,531
Likes: 1
From: Conroe TEXAS!
Cruise-In X Veteran
so, I put the new regutor in adjusted fuel pressure to 46 psi
tuner sudgested 44 but the screw hits the plenum at 46
set the timing to 6 degrees
and it runs very bad(missing and no power)
I drove it around the block and put it away
I was really tempted to kick it a few times
tuner sudgested 44 but the screw hits the plenum at 46
set the timing to 6 degrees
and it runs very bad(missing and no power)
I drove it around the block and put it away
I was really tempted to kick it a few times
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
the regulator is just the hat and screw
Im thinking of cutting the head off that screw an using a shorter one
I also want to bump up the timing to 8 replace the O2 and ck the plugs to see if they are fouled
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
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From: Cumming Ga
i thought you were fixing that you have too much fuel pressure making those injectors flow too much... they are 24 at 39 you are close to 49fp. making the injector over 26lb,, I have no idea what constant the tuner put in your computer either, see if you can find out and get the FPR working correctly
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
i thought you were fixing that you have too much fuel pressure making those injectors flow too much... they are 24 at 39 you are close to 49fp. making the injector over 26lb,, I have no idea what constant the tuner put in your computer either, see if you can find out and get the FPR working correctly
http://www.witchhunter.com/flowdatapix/b0280155865.jpg
so that is 25.3 at 43.5
the tuner wanted it set at 44 thats 25.4
and set at 46 they will flow 26.1
will that make it run Bad?
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
i have this injector
http://www.witchhunter.com/flowdatapix/b0280155865.jpg
so that is 25.3 at 43.5
the tuner wanted it set at 44 thats 25.4
and set at 46 they will flow 26.1
i
will that make it run Bad?
http://www.witchhunter.com/flowdatapix/b0280155865.jpg
so that is 25.3 at 43.5
the tuner wanted it set at 44 thats 25.4
and set at 46 they will flow 26.1
i
will that make it run Bad?
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Safety Car
Joined: Apr 2001
Posts: 3,525
Likes: 2
From: Houston TX
Do not shop the head off. Remove the hat and screw from the AFPR. Unscrew the adjustment screw, and remove ~3 threads worth of material. Clean the thread up and reassmble everything. You should be able to back it out far enough to get the lower FP (unless you have a really thick spacer between the diaphragm and the adjustment screw).
Pics are always a good thing (of the AFPR installed, then of the AFPR parts).
Aaron
Geez, it is raing like a SOB up here....
Pics are always a good thing (of the AFPR installed, then of the AFPR parts).
Aaron
Geez, it is raing like a SOB up here....