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87-turbo
PostPosted: Tue Jan 19, 2010 12:19 am 
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Location: kansas city Mo
bought this car for $300. found timing belt off by 2 teeth. cleaned tank and replaced pump. it started up after fighting me and i set the timing and it ran ok. i was test driving it and it blew out the exhaust and now it acts like it is flooding. have to hold it to the floor to get it to start. than it will start but it wont idle. you have to crank the idle screw up. i noticed that the engine light has never come on. even when you turn on the key. it is my first mitsubishi. i am a ford tech but am lost on this little car.


also how can i run codes? could i have an ecu going out?

thanks guys

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1991 colt 1.5 12v
1985 ford ltd wagon 302
2005 f250 6.0l tow rig
1965 falcon 4.6l dohc swap in progress
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fastvtgsx
PostPosted: Tue Jan 19, 2010 11:40 am 
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I'm going to guess and say you have at least one bent valve. What do you mean by it blew out the exhaust?
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Mechacode
PostPosted: Tue Jan 19, 2010 4:18 pm 
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Time for a compression test. If that checks out ok, I'd start checking sensors starting with the coolant temp sensor.

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Had a:
1991 Eagle Summit ES Hatchback - 4g15 12v 5spd
1991 Dodge Colt -4g15 12v 4spd
Have a:
1978 Oldsmobile Cutlass - 468BBO TH350
Round 3:
1990 Dodge Colt-4G63T 5spd
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87-turbo
PostPosted: Tue Jan 19, 2010 4:37 pm 
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it was running perfect before it started leaking exhaust at the down pipe.

what is the resistance on the sensor? where is the sensor located? is there 2 coolant sensors? (for ecu and for gauge)

what about no engine light?

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faster than a speeding ticket

1991 colt 1.5 12v
1985 ford ltd wagon 302
2005 f250 6.0l tow rig
1965 falcon 4.6l dohc swap in progress
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Mechacode
PostPosted: Tue Jan 19, 2010 4:50 pm 
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The sensor with two prongs. Take your ecu out and check for cap leakage and a slightly fishy smell.

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Had a:
1991 Eagle Summit ES Hatchback - 4g15 12v 5spd
1991 Dodge Colt -4g15 12v 4spd
Have a:
1978 Oldsmobile Cutlass - 468BBO TH350
Round 3:
1990 Dodge Colt-4G63T 5spd
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Incoltnito
PostPosted: Tue Jan 19, 2010 7:41 pm 
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No engine light...I would believe a circuit has shot in your ecu. Take apart and look for burnt spots or leakage from the capacitors, just like they said.

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87-turbo
PostPosted: Wed Jan 20, 2010 4:33 pm 
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thanks guys ill cheak. were is the ecu located. im to lazy to walk up the hill and look.

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faster than a speeding ticket

1991 colt 1.5 12v
1985 ford ltd wagon 302
2005 f250 6.0l tow rig
1965 falcon 4.6l dohc swap in progress
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Mechacode
PostPosted: Wed Jan 20, 2010 6:14 pm 
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Passenger footwell, to the right of the hvac blower motor.

_________________
Had a:
1991 Eagle Summit ES Hatchback - 4g15 12v 5spd
1991 Dodge Colt -4g15 12v 4spd
Have a:
1978 Oldsmobile Cutlass - 468BBO TH350
Round 3:
1990 Dodge Colt-4G63T 5spd
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87-turbo
PostPosted: Wed Jan 20, 2010 10:43 pm 
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just looked at it and found slight leak on 2 of the 3 capacitors :( . is a small leak still bad?

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faster than a speeding ticket

1991 colt 1.5 12v
1985 ford ltd wagon 302
2005 f250 6.0l tow rig
1965 falcon 4.6l dohc swap in progress
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Incoltnito
PostPosted: Thu Jan 21, 2010 1:50 pm 
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Any leak is bad, period. The capacitor isn't functioning like it should, and the acid eats away at the surrounding circuit. Sometimes they can clean and fix them, but your best bet is to buy another ecu. On the bright side, you found out what was ailing your car.

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89Mirageman
PostPosted: Thu Jan 21, 2010 3:44 pm 
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If the car still runs I'm betting you can save it. Send it to Dan.

http://www.4g61t.org/forum/viewtopic.php?f=4&t=28271

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93 Mitsubishi Expo LRV 1.8/manual
95 Eagle Summit DL Coupe 1.5/manual
01 Mitsubishi Mirage ES Sedan 1.8/manual
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87-turbo
PostPosted: Fri Jan 22, 2010 5:10 am 
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Pmed him. would chiping it benifit me at all with it all stock?

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faster than a speeding ticket

1991 colt 1.5 12v
1985 ford ltd wagon 302
2005 f250 6.0l tow rig
1965 falcon 4.6l dohc swap in progress
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Mechacode
PostPosted: Fri Jan 22, 2010 1:07 pm 
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Chipping is meant for eprom ecus, usually a 4g63t ecu which then allows differently tuned chips to be installed (or a emulator like ostrich or dsmlink for constant tuning). While some 4g15 ecus are eprom, there would be no point in doing it for a 4g15.

_________________
Had a:
1991 Eagle Summit ES Hatchback - 4g15 12v 5spd
1991 Dodge Colt -4g15 12v 4spd
Have a:
1978 Oldsmobile Cutlass - 468BBO TH350
Round 3:
1990 Dodge Colt-4G63T 5spd
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87-turbo
PostPosted: Mon Mar 01, 2010 2:17 am 
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had caps replaced and still no start.

does anyone have specs on engine sensors? "resistance readings"

_________________
faster than a speeding ticket

1991 colt 1.5 12v
1985 ford ltd wagon 302
2005 f250 6.0l tow rig
1965 falcon 4.6l dohc swap in progress
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Reply with quote  
Mechacode
PostPosted: Mon Mar 01, 2010 3:50 pm 
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Posts: 5583
Location: Wisconsin
http://lilevo.com/mirage/

_________________
Had a:
1991 Eagle Summit ES Hatchback - 4g15 12v 5spd
1991 Dodge Colt -4g15 12v 4spd
Have a:
1978 Oldsmobile Cutlass - 468BBO TH350
Round 3:
1990 Dodge Colt-4G63T 5spd
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