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View Full Version : changing fuel pump... how do i?



eg6sir
02-06-2007, 02:58 PM
ok, gotta change the fuel pump.. i read somewhere about relieving the pressure in the fuel system.. how would i do this?? anyone have a how to link for me??

i need to know everything.. never done it before

S1M
02-06-2007, 03:08 PM
i'm not sure what the "official" way is... i just take off the fuel cap and go to town.

Volume 8
02-06-2007, 03:18 PM
i'm not sure what the "official" way is... i just take off the fuel cap and go to town.

Exactly, if anything you can always loosen the service bolt on top of the fuel filter to be real sure. But taking the fuel cap off should do it.

eg6sir
02-06-2007, 03:21 PM
well, i've read that you're supposed to start the car, unplug the relay and let the car run till it dies..

angrychicken
02-06-2007, 04:02 PM
I'm with Suja, keep it simple.

Dina
02-06-2007, 08:36 PM
yup Honda only needs to take the fuel cap off I do it at least 3 times a week

eg6sir
02-06-2007, 08:49 PM
alrighty, i think i'll attempt it tomorrow.. anything i should keep an eye out for.. or something that'll make it easier

JdmRevelations
02-06-2007, 09:07 PM
pretty simple IMO... just a lil bit of patience with the rubber hose that feeds the pump...

eg6sir
02-07-2007, 02:23 PM
ok, now i've got the cover taken off, the car started.. pump unplugged and it died.. so far so good.. now do i need to remove these fuel lines to get the pump out (refer to pic).. i tried without unhooking them and it wouldnt come out.. any info appreciated.. need an answer ASAP please

eg6sir
02-07-2007, 03:13 PM
to remove or not to remove, that is the question

eg6sir
02-07-2007, 03:30 PM
ok, i got my answer elsewhere .. back to work

Dina
02-07-2007, 03:39 PM
yes undo them and the pump should come out be careful as the fuel level sender is in there if you bend it, it will not read right

eg6sir
02-07-2007, 04:24 PM
thanks for the tip, havent been back outside yet.. just got done eatin some lunch.. mmm.. Subway, eat fresh

eg6sir
02-07-2007, 06:24 PM
well, got her done.. started up fine.. idles fine.. doesnt die when i come to a stop.. i'm all good to go, except.. yep there is an except.. .. i'm not too sure if its supposed to whine like that.. its really annoying.. its a Walbro 190

S1M
02-07-2007, 07:02 PM
like the whine? yup. welcome to high performance fuel pumps.

JdmRevelations
02-08-2007, 01:41 AM
eheh thats why i stick wit stock... also.. because im not in need of it...

eg6sir
02-08-2007, 11:31 AM
alright, well it seems it wasnt the fuel pump that was my problem, i'm getting code 43 again.. malfunctioning fuel system.. what would throw a CEL?? could it be the relay?

Volume 8
02-08-2007, 12:14 PM
Fuel pressure regulator may be faulty, check your fuel pressure. Also check for leaky injectors. I'll see if I can get you a copy of the Helms troubleshooting chart for that after work today. I just have to figure out how to convert PDF to JPG.

eg6sir
02-08-2007, 01:47 PM
it also makes this kinda grinding sound.. here is a vid i took
http://s134.photobucket.com/albums/q114/f0urstar/?action=view&current=MOV00828.flv

Volume 8
02-08-2007, 03:14 PM
Vid doesn't play on my work PC. I'll have to check it out when I get home, maybe I can help shed some light on the problem.

eg6sir
02-08-2007, 06:25 PM
need some help here..

Volume 8
02-08-2007, 08:00 PM
workin' on it bro, I'm just having a hell of a time converting PDF files into something usable.

eg6sir
02-08-2007, 08:02 PM
email them to me... fourstar0488@gmail.com

ronjdm36
02-08-2007, 08:02 PM
so what is it doing now, is it staying running. or does it die then throw the code

eg6sir
02-08-2007, 08:07 PM
the CEL comes on while i'm driving, i turn off the car and when i restart it later its off and out of nowhere it comes back.. its only came on 3 times in 2 weeks.. it stays running it just idles really rough and low acting like its gonna die out..

Dina
02-08-2007, 08:25 PM
what engine is it you have?

eg6sir
02-08-2007, 08:29 PM
obd1 b16 sir2

ronjdm36
02-08-2007, 08:35 PM
you need to check your fuel pressure and go from there. could be a faulty FPR like lionel said. have you changed your fuel filter lately?

eg6sir
02-08-2007, 08:39 PM
not in a couple years

ronjdm36
02-08-2007, 08:41 PM
i'd say change that , its the cheapest piece. get a gauge and check your fuel pressure too. it should be right around 34 psi

eg6sir
02-08-2007, 08:48 PM
fuel filter wouldnt throw a CEL though, would it??

Volume 8
02-08-2007, 08:50 PM
Hopefully those charts I sent you help. But yeah, definitely change the fuel filter if it's been that long. That may solve your problem and it would definitely be the cheapest solution.

eg6sir
02-08-2007, 08:52 PM
i'll pick one up tonight and change it in the morning, it just started getting dark here

G-rat
02-08-2007, 09:10 PM
i'd say change that , its the cheapest piece. get a gauge and check your fuel pressure too. it should be right around 34 psi


i thought stock fuel pressure was around 36?

ronjdm36
02-08-2007, 10:50 PM
fuel filter wouldnt throw a CEL though, would it??

no, but it could cause your system to not have the correct pressure. that could cause your ecu to recognize a problem with it. and yes garrett the stock fuel pressure is 34.

eg6sir
02-09-2007, 03:16 PM
well, changed the fuel filter.. seem to run good at first, but then it started doing it again.. it idles fine after i drive it hard, when i drive normal it spudders at idle acting like its gonna die.. then it shuts off

Volume 8
02-09-2007, 06:43 PM
Check your fuel pressure, if it's not right, try swapping in a different fuel pressure regulator.

ronjdm36
02-09-2007, 06:45 PM
kinda sounds to me like you have an injector problem or possibly an ignition problem. but, most likely and injector, since you threw the fuel system malfunction CEL.

eg6sir
02-09-2007, 06:46 PM
that'll be next.. probably tomorrow

Green95Eg
11-01-2007, 05:48 PM
yes you have to take both off, the main bolt might be pretty tight but it will loosen. after you do that it will pull out. make sure the little mesh bag is still atached to the old pump.make sure you have one of those bags on the new one, but don't put a walbro pump on unless you got bigger injectors to back it up or your car will have too much fuel pressure an it will run funny. if its stock pump you will be alright. after you got the new pump in start the car and make sure you don't have any leaks from the main hose or the little one w the hose clamp before you put the cover back on.

dmacedo
11-01-2007, 06:03 PM
i think he did that already :redfacevb:

naman
11-01-2007, 06:23 PM
i think he did that already :redfacevb:

Ditto, what's up with bringing threads back to life. Jacked...