Ok I deicde to clean out my car or whatever, and mount my ecu on the outside of the carpet, so I do everything normal hook back up the ecu, etc. But time to head out my car wont turn over, it just keeps doing that noice before it turns over, the fuel pump is connected, and the ecu is connected, battery is connected, I duno what is wrong those are the only things I touched.

 

bump

 

What noise is it making?

The motor is physically cranking but not firing?

 

yeah, it just wont turn over, I duno why, and I dont think I have that little plug to get an ecu code, I looked by the ecu there isnt a plug at all. nor is there a light on my ecu to flash a code.

 

Are you sure you no where the ecu is? Im pretty sure they all have the viewing window to check the code

Your looking under your passenger side carpet right?

Few questions- Can you hear the fuel pump priming?
Have you checked for spark?

 

it does'nt seem to be a ECU problem

 

I said I unplugged my ecu, I know where it is. Im just saying this happened after I unplugged it and put it back in. And im looking for a 4 wire plug and dont see one, all I see are like 15 wire plugs, im converted to obd1. how do I check for spark ? ?

 

Check for spark by pulling a spark wire and holding it to a ground while someone tries to crank the car, you will visually see a bright spark arcing into the ground

You didnt say if the fuel pump could be heard priming or not. If the fuel pump is priming and you check for spark and check in I can help more, need to know that first or you could have 100000 problems

 

when you unplugged your ECU, did you disconnected you battery before to do this?
there might be the problem, you check the sparck by unnpluged a sparkwire and the sparck togheter, then look for a grond and switch on your engine, this must be for a milimiters from the engine grond, so you're gonna need some help, to see if it's working or not. about the way, when you switch on your engine it's gonna be a light bettwen the engine and the spark

 

^^ English typing eludes you

 

jaja I'm not from US

 

what do you guys mean ground the spark plug wire, how do I ground it, its full of rubber and theres a metal piece in it, can you give an example, do I use valvecover ground ?

 

yes you can use it, or any part of the chasis.
becareful, not be the part of the ground, cuz it hurts alot!

 

lol, ok im not sure about the fuel pump, ill turn the ignition on and hear something for 2-3 seconds, then it stops.

 

the pump is ok so the main relay

 

thats ur fuel pump , its 2 seconds exactly

DO you have spark? If you have spark then the best thing to change is your main relay ($5 at a junk yard, grab a few)

If youre not getting spark it could be (dizzy plugs disconnected, dizzy internal problem, plugs, wires, main relay)

You didnt play with any wires and this car ran fine before right?

 

right, and I cant figure out how to ground it, the metal in the plug is so far in and I dont know how to ground it or whatever. This really suck, it all worked until I took out my ecu. Didnt mess with anything else except the battery.

 

ok 1st. you're gonna need someone to help you, you cant do this at your own.
2. when you're ready at the engine, you're other mate most be swithcing on your engine, easy like that. when you're doing this, you're going to see this spark light.

 

stupid crx? or stupid person dicking with it?


put everything back to the way it was before it started acting up, and start over.

 

I did man Like I said all i did was unplug my ecu and plug it back, I have no spark, and my fuel pump is priming. So I dont know what it is specifically.

 

it is possible you fried the ecu by static charge..... setting it on concrete or anything?


check the connections again.... if they are plugged in tight, i think maybe check the wires again, make sure you didnt pull a pin loose or tear a wire in half.

you said you mounted the ecu on the outside of the carpet.... (reason being, who knows) maybe you tugged on the wires a little too hard when trying to reconnect.


it obviously cranked before you dicked with it, right?

 

Ok I swapped out the ecu with another, no go. I replaced a couple fuses, no go. there is one wire hanging out and im not sure in which of the 4 slots it goes, but I tried all 4 and nothing happened. Anyone got any other ideas on what could have happened.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtakkk &raquo;</TD></TR><TR><TD CLASS="quote">there is one wire hanging out and im not sure in which of the 4 slots it goes, but I tried all 4 and nothing happened. Anyone got any other ideas on what could have happened.</TD></TR></TABLE>


hmmmmmmm. might want to check online for some ecu diagrams. i'm sure that is your problem. last i checked i didnt have any loose wires just hangin' out for the ride.

 

lol man, you might have of wanted to mention the loose wire before trying to trouble shoot other ****

Thats definetely it, if you completely pulled out one, theres a good chance you fucked somemore

 

did u say u have spark or u dont? did u even check correctly? if u didnt ill come over in the am and we'll check for that. also y didnt u just say u had a loose wire? come on Main