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90 Auto Civic stalling problem

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Old 03-11-2017, 02:43 PM   #1
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Default 90 Auto Civic stalling problem

My car is a 1990 civic hatch DX auto d15b2 and I took it to a mechanic who's also a trusted friend because I was having stalling issues and was getting an obd0 ECU code 1 for bad o2 sensor. Picked it up today and only made it half a mile before it stalled and wouldnt start so I towed it and it started fine after an hour cooled off, drove it again and half a mile it stalled with no start and electricity works. Also no ECU code. He performed valve adjustment, checked starter and alternator, replaced distributor, timing is perfect, spark plugs and wires are new, vacuum hoses new, new o2 sensor, and my engine is rebuilt with less than 5k miles. Im not sure if he checked my fuel pump or filter but he said when it's idling the fuel, air, and compression are great. Any ideas what I should be looking at next? Cause my friend is leaving for spring break and I need my car fixed for work Monday. Thanks everybody!
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Old 03-11-2017, 04:49 PM   #2
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Default Re: 90 Auto Civic stalling problem

main relay, ect sensor, ig switch are good places to start:

Acura Honda Main Relay Solution

https://axleaddict.com/auto-repair/C...re-Sensor-Test

DIY Ignition switch cleaning - Team Integra Forums - Team Integra

if ig switch clean clean makes a diff then replace imho..

more good info:

Starting Problems
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Old 03-15-2017, 07:33 AM   #3
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Default Re: 90 Auto Civic stalling problem

Quote:
Originally Posted by tamboo View Post
main relay, ect sensor, ig switch are good places to start:

Acura Honda Main Relay Solution

https://axleaddict.com/auto-repair/C...re-Sensor-Test

DIY Ignition switch cleaning - Team Integra Forums - Team Integra

if ig switch clean clean makes a diff then replace imho..

more good info:

Starting Problems
Thanks for the reply.
Main relay has been previously repaired but I took it out anyways and all the solder looks fine. ECT sensor is good and my rad + hoses are newer and new thermostat. I cleaned my ig switch and still having same issue with dieing after driving less than half a mile or less than a minute. Also I noticed if i don't drive it and just let it I sit and idle, it lasts 5-15 minutes until it dies.
My mechanic friend did mention he thought it was overfueling and that could be why it was dieing but never said why it was overfueling and I can't contact him for a few weeks.

P.S. I also looked at the "starting problems" link you posted and according to that, I figured it was my ECU or fuel delivery. My ECU light does what it should when it starts so that works, and for fuel delivery I dont think checking my throttle body will help unless I happen to see what it does when it dies (which is gonna be hard cause it's random)

Last edited by patient49; 03-15-2017 at 08:04 AM.
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