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Home > Home & Garden > Cars & Trucks   »   Non-staring 97 Civic Coupe 1.6i LS (SOHC)

 
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Old Dec 17, 2006, 10:02 AM
Jamodu
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Non-staring 97 Civic Coupe 1.6i LS (SOHC)

Hi guys,

I've currently got a non-starting (UK) 1997 Civic Coupe 1.6i LS. I was driving it last week when the CEL came on. As I was a couple of minutes from home, I drove back and parked up, then when I came to try the car later that day, it refused to start.

When the ignition key is turned, the car turns over but won't fire up. There is a relatively strong/blue spark at the plugs, and there is fuel in the line. At the recommendation of an RAC mechanic, I have replaced the distributor unit including leads and coil/igniter. The car still won't start.

When turning the key to ON, The CEL comes on, I can hear a relay click, the fuel pump runs for 2 seconds, and then the relay clicks again as the fuel pump stops (is this the final click, or should I hear another one?) As the fuel pump stops, the CEL goes out, but a second later it lights up again permanently.

I have tried to locate the service connector (2P) to jump and check error codes, but can't find it in the passenger side kick panel, around the ECU or under the carpet. I've heard that it may be plugged into the back of the fuse box and that you can't jump it on this model - it has to be plugged into a diagnostic box? can anyone confirm that please?

Also - please can anyone shed some light on the Honda immobiliser system? Could this be causing the problem? Does the immobiliser allow sparks to the plugs or does it just cut the injectors? I have the 'red' key for the car - should I try using that or are there serious consequences of usign the master key in the ignition, ie will it render the other black key useless?


Any help or advice is greatly appreciated.

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Old Dec 18, 2006, 01:16 PM   #11  
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It appears you have classic ECM failure. Remove your old ECM and get the exact Honda Part No. from it. I installed a Cardone remanufactured ECM, with a lifetime warranty, in my 1993 Civic DX for $253--Honda wanted $850.

Buying that multimeter just saved you a lot of aggravation and money. Most outfits charge at least a $100 just to diagnose an ECM, let alone removing and installing a new one. How easy was that? When all is said and done, you will save yourself the equivalent of $1,000.

I wouldn't waste the time running the confirming test, with readings of 0.4V. Spend the time shopping for the best deal you can get on a replacement ECM.
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Old Dec 18, 2006, 01:26 PM   #12  
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Well...not exactly the diagnosis I really wanted but thankyou all the same for your help. The multimeter was indeed a worthy purchase and one that wil get much more use no doubt. Unfortunately, I didn't have the guts to go tinkering with the electronics before replacing the distributor as initially reccomended - it would have saved me some money - but I suppose it's good to know it has been changed!

With regards to swapping the ECM - are you sure the immobiliser will recognise the new ECM without having to be reprogrammed?

Thanks again.
Duncan
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Old Dec 18, 2006, 01:30 PM   #13  
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You can call the local Honda dealer and confirm, but I wouldn't think it would.

It's good you replaced your distributor. The sealed bearings in them normally fail anywhere from 50,000 to 90,000 miles.
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Old Dec 18, 2006, 01:39 PM   #14  
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Keep me posted with how everything turns out. I've enjoyed working with you.
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Old Dec 18, 2006, 01:49 PM   #15  
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Likewise, I've actually enjoyed the challenge of getting under the bonnet and trying to get to the bottom of the problem. For future reference for UK owners with similar ECU problems, I've found this company who test/exchange/repair/resell ECUs...

http://www.ecutesting.com

I'll keep you updated on my progress...hopefully this will be fixed in time for xmas!!
Cheers again...
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Old Dec 18, 2006, 01:57 PM   #16  
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Looks good. The site implies the immobiliser could complicate matters--just ask around.
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Old Dec 18, 2006, 02:21 PM   #17  
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I'll ask them tomorrow morning. As they suggest, I may buy a free running ECU to eliminate any immobiliser problems. Obviously it will render the immobiliser obsolete but they're not exactly 100% secure these days anyway.

Cheers
Duncan
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Old Dec 18, 2006, 02:25 PM   #18  
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I had a 1994 Accord EX that had anti-theft equipment--I ended up removing it. To me, it's more trouble than it's worth.
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Old Dec 19, 2006, 09:03 AM   #19  
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Quick update. It seems no-one has a matching ECU in stock. Also, its may not be possible to reprogramme that particular ECU anyway so my only option is to test and repair the original ECU - which will take a while.

No car at Christmas then. Ah well
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Old Dec 19, 2006, 09:07 AM   #20  
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Did others confirm that the immobiliser would be a problem?
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