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About to throw in the towel

 
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Old 02-16-2012, 12:29 PM
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Icon9 About to throw in the towel

So I've been having a painfully intermittent starting problem for over a year now. I've posted, troubleshot, maintained, replaced, and rebuilt. She cranks perfectly and there is fuel (Proper pressure), compression (Good across the board), but the spark is where it gets sticky.

There's the occasional sputter of a spark, but its weak. When it gets strong enough to start the car she quickly dies. The entire ignition system has been troubleshot and eventually replaced. Grounds have all been checked and Main relay is just fine.

I recently did a head gasket, timing belt and a few other maintenance bits, but they did not help the starting situation.

There's only 5 things I can think of at this point that could be the culprits.

1. Ignition Switch (Which will be replaced today)
2. Crank Sensor (I'm not throwing any codes so I'm not sure)
3. ECU (Seems to be ok, but I'm running out of options)
4. Wiring Harness (Maybe there's a short somewhere I'm not sure)
5. Key (My key is a little worn probably the original so maybe the ECU can't read it properly)

If anyone has any insight or better yet any experience with a situation like this any input would be great.

98 SH btw ran great for the first year after I could actually get it started.
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Last edited by Tophatshaw; 02-16-2012 at 12:35 PM.
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Old 02-16-2012, 01:24 PM
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Re: About to throw in the towel

did you change the distributor or swap it out for a good used one to see if it was your problem?
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Old 02-16-2012, 02:23 PM
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Re: About to throw in the towel

I would say distributor
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Old 02-16-2012, 04:13 PM
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Re: About to throw in the towel

Replaced Ignition Switch today to no avail. I have a Dim CEL and ATTS light. I'm thinking my issue may be electrical. I'll be going over the schematics today. I have an after market air/fuel gauge (installed by previous owner. I'm leaning on that or a shortage somewhere.,
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Old 02-16-2012, 09:09 PM
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Re: About to throw in the towel

I probably wouldn't worry about messing with the ignition wiring in the steering column until it's your last resort. I would check everything starting with the battery, wiring from there to the alternator, to the starter, to the distributor, etc.. and all the grounds in between. Sand the grounding points for all these components to ensure they have a good connection, wire brush all the other connections, use some baking soda and water to clean them. Test EVERY ONE of those components, use a volt meter to test the voltage between all of them.
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Old 02-16-2012, 10:31 PM
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Re: About to throw in the towel

i have a dizzy for sell if you need one.
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Old 02-16-2012, 11:11 PM
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Re: About to throw in the towel

Great help^^^

Check the ignition coil too. I would make sure the connectors aren't corroded that connect to the coil.
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Old 02-17-2012, 01:36 AM
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Re: About to throw in the towel

Thanks for the responses. Every component has been check and double checked. All grounds have been sanded, cleaned, washed and reapplied. All components starting from battery all the way to the plugs have been been checked with a ohm meter.

Tried starting car today, but the CEL was never bright. After playing with the key a bit it would eventually brighten up and try to fire when cranking. Then after adjusting the key a bit more would cut out.

Ignition Switch was replaced and CEL and ATTS always stayed dim as if there were a loose connection somewhere.

Also used a friends analyzer and it showed that the signal from the ECU was never getting to the components unless playing around with the key and even then it would only send for a bit.
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Old 02-17-2012, 10:37 AM
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Re: About to throw in the towel

Um... Do you have a key immobilizer unit? If the contacts in the unit are bad, the car won't start. If you swapped yours with another whole unit, it needs to be reprogrammed. There are some things you must go to Honda to get taken care of. If you already went, then the work they did is warrantied.
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Old 02-20-2012, 10:59 PM
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Re: About to throw in the towel

PROBLEM FIXED!!! It was ground G101. The one by the thermostat housing. Car runs great! I only have to figure out my idling issue then she will be perfect.

Thanks for all the help guys!
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