No Fuel...have spark and compression

[Losiracer2]

Ok I just did a headgasket on an engine. I had to swap the block b/c it was so badly corroded that the headgasket wasn't sealing so, basically the entire engine is new.

I'm getting good compression, and I'm getting spark, but there's no fuel in the rail. I also put some gas in the tank b/c it was sitting for about 5 months when I finally finished it last night.

I pulled the main relay, took the cover off and checked all the solder joints are good. I also heard it click prior to taking it off the car when I turned the key to the ON position.

Does that mean the fuel pump is bad? I don't hear it turning on at all when i turned the key to the ON position.

[quaidum]

is the ground for your wire harness bolted to the underside of the thermostat housing, b/c my car would crank and everything but would not start

[Losiracer2]

is the ground for your wire harness bolted to the underside of the thermostat housing, b/c my car would crank and everything but would not start

Yeah I made sure that was on there I also took apart the main relay and soldered all the joints earlier today

[bruno8747]

Check to see if you are getting power to the connector that goes into the fuel tank for the pump

[wed3k]

you sure you have fuel in the tank?

[Losiracer2]

Check to see if you are getting power to the connector that goes into the fuel tank for the pump

is that on top of the tank? under the backseat?

you sure you have fuel in the tank?

yeah I bought a gallon of 87 and dumped it in there last night, even though the fuel gauge shows a 1/3 tank...I just hope its not all gummed up.

But I gotta figure out if its the pump.

The only way I can get to it is by dropping the tank?

[wed3k]

yea you have to drop the tank to access the connector. if you can get someone to crank it while you smack the tank with a rubber mallet...

t-belt is turning right? if im not mistaken, the computer needs to see rpm via crank signal in dizzy in order to turn the pump on.

[Losiracer2]

yea you have to drop the tank to access the connector. if you can get someone to crank it while you smack the tank with a rubber mallet...

t-belt is turning right? if im not mistaken, the computer needs to see rpm via crank signal in dizzy in order to turn the pump on.

yeah, T-belt turns, we just swapped the entire engine and did the T-belt/waterpump and valve adjustment on the newly redone head. I'm kicking myself though for reusing a waterpump gasket and waterpump even though its a Honda one that looked recently replaced...i can already see coolant dripping from the timing cover.

But everything turns freely and cranks up nicely.

I did a search for "Fuel Pump" and saw that some people cut a hole on top, under the backseat?

I'm thinking about doing this since I've got about a third tank + the gallon I just put in last night. And only have jackstands and a low pro jack that prob. won't lift it up high enough. And I'm gonna be by myself and I'm no Hulk Hogan.

[Losiracer2]

just to be clear though, can an igniter cause a no start like this? or cause the fuel pump not to turn on? I'm also going to check the grounds in the back and see if they're in good shape

[wed3k]

ignitor has no relation.

[Losiracer2]

well good news! I tried spraying the throttle body with carb cleaner and the car fired up right on the first crank....then died lol. I found an OEM Honda fuel pump for 20 bucks...in working condition outta a 91 accord that was just wrecked.

The guy used an air hammer to get the top of the car open in about 5 min and had the pump out 5 min later lol. I'm really tempted to do it that way. Would make my life so much easier.

At least now I know how its secured to the car.

[Paging]

Yeah I would say its the fuel pump.
Happened to me awhile back you can do it with the tank in the car but its a bitch easier to just pull the tank and swap it.
(good that you don't have much gas in it)

When you pull the old pump compare to the new one, just in case yours is a crossover year. My 92 lx 4dr had a 90-91 pump in it. I'm not sure if OEM is all the same but aftermarket is different between 90-91/92-93.

Hope it helps

[almostJDM]

the car its going in is a 91 also so they should be the same, good thing you confirmed it was the pump

[deevergote]

Cutting a hole is scary... sparks near the fuel tank woudl sway me! Of course, if the stuff holding the fuel tank in place is all rusted, then it's going to be a pain, and things will need to be replaced.


If you're SURE you don't hear your fuel pump turning on, and you're SURE you have a working main relay... check your wiring first, then assume the pump is bad.

Another possible culprit is the injector resistor box. I've seen maybe 2 of them go bad on this site... it's not common, but not unheard of. Might want to give that a shot before dropping the tank, as it's a MUCH easier part to replace!

[almostJDM]

well I just learned something new, I never knew an injector resistor box could cause the fuel pump not to work, and yea it would be alot easier to replace, and since its really easy to remove you could try the one from your other cb, and we checked double checked and even tripple checked the wiring to make sure we had everything hooked up correctly, and the fact it fires up with carb cleaner means its all hooked up correctly