Here the down and dirty... Installed new intake fuel pump from Walbro. I used the same connections from the car, although the pump came with it's own wire/plug. After a quick and easy install, the car started fine. Got down the block to the first stop sign. Felt fine, leaving the stop sign the engine starts to stumble/flutter while easily stepping on the gas. I decelerate and accelerate again and stumbles/flutter some more. I get to the second stop sign then it feels fine. Then it starts to do the nasty again. I get to the third stop sign then the eninge dies. It wouldn't start, it does though crank but doesn't turn over to start.

I've checked most fuses, the ones I've can clearly see: starter signal, ecu and the main relay seems to be 'clicking' when I turn the key. I'm only associating the problem with the pump mainly because it started fine when I drove the car into the garage and because it was running fine the night before. I have plenty of gas in the tank as well.

The engine is a B18C1 put into my coupe. Any suggestions or help would be greatly appreciated. TIA

 

check your fuel pressure.

 

Check the location of the pump "sock". Even if the tank is half full, it may not be picking up fuel from the tank. Have a friend listen in the back and see if the pump comes on when you first energize the key.

 

The location of the pump 'sock' is in the same location as the stock one. I couldn't fit the pump in any other way. The pump also comes on when I energize the key as well.

Is there any way to check the fuel pressure, other than having to buy a fuel pressure guage?

I'll try to move the 'sock' and see what happens. If I have to get a fuel pressure reg and guage, I'll do so too.

Thanks guys.

 

Well, what happened to my brother and I when we installed his pump was that the little metal ring on the top of the pump, where it connects to the fuel feed, actually CAME OFF THE PUMP and lodged inside that fuel feed line. It was spinning around and screwing up the fuel pressure, so even though the pump was working (we actually went through 3 pumps, warranty rules), we were still getting almost no fuel pressure and the car wouldn't start or, when it did start, wouldn't run right.

Just something to check

Oh, if you want to check for pressure w/o a gauge, you can't really do that (LOL) but you can just pull off the feed line to the engine and put it in a bottle. When you turn on the car gas should spray HARD out of that line. If it trickles or gushes on and off something's wrong.


[Modified by raene, 1:24 AM 11/28/2002]

 

Alright, here's the verdict. Checked the connections to and on the fuel pump: Good. Checked spark plugs: Good. Checked fuel level: Good. Main relay, fuses, connections...everything. All good.

Checked fuel pressure the ghetto way by unplugging the hose connected to the fuel regulator: BONE DRY and nothing was squirting out when the key was turned on or when the engine was cranked to attempt to start. Changed back to the old fuel pump...Car started, GOOD

-Side note. After installation of the old pump I had to crank over the engine a little bit to get it started, that being because there was no fuel in the line or cycled through the old fuel pump. I found and it is an assumption that the only reason why the car started when the Walbro pump was installed is because there was just a little bit of fuel left in the lines.

Has anyone ever ran into a bum or bad Walbro pump? Is there a site where I can refer to warrenty(sp) if any? Thanks again for helping with the troubleshooting guys.

 

I am having this same problem with the pump i installed today. Car won't start now. I hear the pump energize, but car wont start...

We had the car running at idle for a good 2 minutes, then all of a sudden it just turned off. What could it be? its a Walbro 190lph. The fuel pump didnt attach the the metal holder really well, its just hanging, it didnt fit... you think we should zip tie it? we currently have it held down by opening the area was it was suppose to go, and then closing it as much as we could on the pump.

 

GJ on the search function

Try what was suggested above - disconnect the feed to the engine and then put it in a bottle + prime the pump several times. Fuel should shoot right out in a hard spray.

A car will idle for quite a while on little or no fuel pressure. I had my brother's B16A Civic idle for about 3 mins and even revved it a few times before finally realizing the fuel pump was disconnected and not running. It didn't even die or anything (amazing).

 

so what if it does spray hard, what do you conclude?
and what if it doesn't spray hard?

are the plugs i am running too cold? NGK #7s

i mean its a big jump from 79lph stock cx, to a 190lph walbro

 

I jumped from a stock CRX Si pump to my 190lph Walbro unit with no problems.. and my brother's STD h/b jumped from the stock unit to a 190lph Walbro, again, with no problems. It's not the LPH that's the problem unless the flow is overcoming the regulator's ability to return fuel to the tank.

If fuel sprays out hard then you know that the entire path, from the fuel tank to the feed into the injector fuel rail, is functioning correctly. That means your filter's not clogged, your lines aren't blocked, there's no kinks, the pump is mounted in fuel, etc.

A problem my brother had when installing his (I didn't have this problem) was that the pump wasn't mounted low enough in the tank - the length of the tube on the pick up screen was less than stock (it's an EG/EK pump mounted in an EF). We have a large steep driveway, so the car would start and run fine, but when you tried to take it out of the garage the pump pickup would become uncovered and the pump would suck air and cause the car to choke. Something like this may be happening with you... but I'd be inclined to check all the hoses/fittings for blockages and then checking the mounting height and position before blaming the pump or plugs.

 

disconnected fuel line to see if fuel was coming out.. but it wasnt.

so we swapped it out for the old one, and poof... it worked. fuel squirted out. closed the bolt back up under the hood, started the car, it worked.

so was this a faulty walbro pump? is there a warranty of some sort?

 

Hmm that's very odd. My Walbro 255 lph went right in.

One thing to make sure though is that you do not pinch any wires while installing that pump. It's a little bit of a bitch to cram in there.

 

There is a warranty on Walbro pumps, yes. Just take it back to the place you bought it. As I posted above, my brother went through 3 pumps before realizing that the first pump had become faulty and lodged a piece in the line. They should swap it with a replacement unit.