its a 95 civic ls 5 speed. car wont start and has no check engine light. previously it ran shitty(no power, fumbling idle, bucking, hesitation) and does not throw a light. im thinkin the fuel pump is weak. i checked the reisistance of the pump and its 1 ohm. is that normal? also the amperage of it priming and engine cranking is like 4 amps. shouldnt it be more than that? any help is appreciated


Modified by Ehop at 5:42 PM 3/24/2008

 

bump, anybody?

 

bump

 

bump

 

bump bump

 

b u m p

 

i wished i could help you for the most part but bumping this thread every 20 mins will not get you an answer any faster. im thinking 1 ohm isnt cutting it

 

You should also check whether you have spark at each of the plugs. This is done by pulling one of the plug wires, putting a good spark plug in the end of it, grounding the plug threads against a convenient metallic part of the engine, and having a buddy crank the engine. You should see a bright spark at the end of the plug. Repeat for the remaining three plug wires. If you lack spark at all the plugs, then you might have a bad coil or igniter unit. Another possibility is that your timing belt snapped.

 

i have spark, n i wouldnt have spark if the belt snapped so not that. i kno the problem is with the but but i need to isolate where the problem is.

 

Is the fuel filter possibly clogged?

Here's how to troubleshoot the fuel pump:

 

the fuel pump turns on but im not sure if its drawing the current it should

 

Does the engine start with starter fluid?

Is the fuel filter clogged?

Do you get battery voltage (12V) when you do the tests in the diagram?

 

yea i checked source voltage before i tested the amperage draw. fuel filter is ok. no i havent used starter fluid, i'd like not to.

 

Have you checked the fuel pressure?

 

the gauge i have is a vacuum/fuel pressure gauge and it only reads to 10 psi. it does make pressure but i noticed it didnt instantly rise, it bumped to like 4 then to the full 10 and since the gauge wont read higher so im not sure if its where it needs to be. i went to sears to buy a gauge that reads higher but they only kind they had were the quick connect kind for like fords n other domestics.

 

Maybe AutoZone or other parts stores will lend you a proper fuel pressure gauge. At AutoZone, you rent a tool by leaving a deposit, which is returned when you bring it back. In essence, the rental is free. It's worth looking into.


Modified by RonJ@HT at 8:00 PM 3/24/2008

 

Having some pressure is no help you need enough for the fuel to atomize coming out of injectors. if you have to low of a presure it will come out in a streem like ****.

 

yea i've done that before for a ball joint puller but i dont remember em having gauges but i'll check

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Colby71 &raquo;</TD></TR><TR><TD CLASS="quote">Having some pressure is no help you need enough for the fuel to atomize coming out of injectors. if you have to low of a presure it will come out in a streem like ****.</TD></TR></TABLE>

i know that, as you can see in my earlier post i tried to get a gauge that read higher but they didnt have it. my point was that it makes 'some' pressure so its not dead, im just thinkin its weak n i wanna be sure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ehop &raquo;</TD></TR><TR><TD CLASS="quote">
...point was that it makes 'some' pressure so its not dead, im just thinkin its weak n i wanna be sure.</TD></TR></TABLE>

An appropriate fuel pressure gauge should answer your question.

 

i know that. but i dont have one which is y i asked about amperage draw, something i can measure. but i havent found my answer so i will have to find a gauge with the right fitting.