88 crx hf starting problems no power the the main componets

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Old Feb 3, 2009 | 11:03 AM
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Default 88 crx hf starting problems no power the the main componets

i did search and can't come up with anything, i have a 88 crx hf wouldn't start i thought i was the chassis and engine harness so i changed the the engine and chassis harness to 89 crx si, and still with the same problem, i changed the main relay 4 time, i changed the starter relay 4 times and still nothing i jump the relays and the car starts, i have no clue what is going on

http://www.youtube.com/watch?v=Nc0eWabjqGo

someone shed some light on this please,
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Old Feb 3, 2009 | 11:28 AM
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Default Re: 88 crx hf starting problems no power the the main componets

um it won't let me see the video i'm not your friend lol here send this name a friend request so i can see it ksimope2, and is it cranking over or just not doing anything check all your grounds
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Old Feb 3, 2009 | 11:37 AM
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Default Re: 88 crx hf starting problems no power the the main componets

all ground where check and connected i will fix the video hold on
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Old Feb 3, 2009 | 11:39 AM
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Default Re: 88 crx hf starting problems no power the the main componets

video fixed
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Old Feb 3, 2009 | 12:11 PM
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Default Re: 88 crx hf starting problems no power the the main componets

normally id say main relay, but you said you have already changed it....now you have changed your chassis and engine harness to si, must have been a lot of work, is it possible something has been left out? perhaps a ground for the relay? power to the relay? do continuity tests for the relay clip, make sure everything is okay before going any further.
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Old Feb 3, 2009 | 12:21 PM
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Default Re: 88 crx hf starting problems no power the the main componets

the whole harness is si i have power to the relay i just threw ground to it and the fuel pump still those no kick on, i found out the ignitor is bad on the distributor thats why the rpms those not work, but the main relay should still kick on the fuel pump
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Old Feb 3, 2009 | 12:31 PM
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Default Re: 88 crx hf starting problems no power the the main componets

if you jump the harness you have power. So that means the relays are not doing their job. So they are either not getting ground or power to the electromagnet in the relay and it can not complete the circuit.

Here is what I would do.

You have basically ruled out the relays being bad, but you can test them by putting power and ground and listening for them to click.

Get a friend to try to start the car for you. Get out your DVOM and check for 12 volts on each power circuit for the relays. If you are missing voltage you know you have a power supply problem.
Next check for ground by hooking your DVOM to your + battery terminal and then on the ground circuit for each switch. If you have no voltage then you know you have a bad ground.

To be honest, my best guess to the problem with your car is the ignition switch went bad and is no longer sending signal to the relays.
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Old Feb 3, 2009 | 12:55 PM
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Default Re: 88 crx hf starting problems no power the the main componets

does your Check Engine Light come on for 2 seconds when you turn the ignition on ? - is the ground wire at the thermostat housing connected? - it is the ground for the ECU and the main relay

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Old Feb 3, 2009 | 01:48 PM
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Default Re: 88 crx hf starting problems no power the the main componets

thats connected, all grounds are connected, those where the first things i checked i did check all with a ohms meter the voltage from the main relay and did change the ignition switch now the main relay clicks but still the fuel pump those not prime im here still checking the post and moving onto finding out the problem thanks for response guys keep them coming i'm getting a step closer each time, no my check engine light those not come on but it will be doing it soon, last owner removed the check engine light
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Old Feb 3, 2009 | 06:35 PM
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Default Re: 88 crx hf starting problems no power the the main componets

still with the same problem
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Old Feb 3, 2009 | 11:07 PM
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Default Re: 88 crx hf starting problems no power the the main componets

Did you check for 12 volts at the fuel pump?
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Old Feb 4, 2009 | 06:20 AM
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Default Re: 88 crx hf starting problems no power the the main componets

I did check no 12v going to the fuel pump i took the main relay out of my running ef hatch and still, it clicks once and nothing, there's still no 12v going to the starter relay maybe clutch pedal switch??? i'm going to trouble shoot the new ignition switch and see
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Old Feb 4, 2009 | 10:40 AM
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Default Re: 88 crx hf starting problems no power the the main componets

Yes it could possibly be the clutch saftey switch. Try to jump the connector for the switch and hook everything else up properly.

Here are some diagrams for you, maybe they will help.




Last edited by hybrid1990crx; Feb 4, 2009 at 10:46 AM.
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Old Feb 4, 2009 | 06:44 PM
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Default Re: 88 crx hf starting problems no power the the main componets

thanks im going to try that tomorrow
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Old Feb 6, 2009 | 11:43 AM
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Default Re: 88 crx hf starting problems no power the the main componets

haven't tried it yet it been cold outside
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Old Feb 7, 2009 | 05:59 PM
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Default Re: 88 crx hf starting problems no power the the main componets

ok man keep us updated!
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Old Feb 13, 2009 | 06:19 PM
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Default Re: 88 crx hf starting problems no power the the main componets

lol i got tired of messing with it im putting in a 95 eg complete wiring harness front to back for $37 at a local junk yard, i will take some pics of the progress,

out with the old:
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