2G Please help! what is this?

[chefbrown12014]

What would cause this?!

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Idels very low...500rpms...
Needs gas pedal to start.
Starts up fine without gas pedal once warmed up.
Turns over fine.
Blinking happens when i am on the gas.
...but sometimes blinks when im off gas.
Engine light, P0300, multiple misfiring cyclinders.
Coils, and wires already changed by me.
Coukd this be ecu?

She is a 97 eclipse gsx. Stock turboed 4g63.

 

[mitsubishikid]

Battery and alternator in good shape?
also check the alternator belt tension too

It looks like voltage is fluctuating on the dash bulbs, thats what leads me to think alternator or battery.

 

[spyderdrifter]

I'd say your alternator is probably not operating at peck performance. May be time to replace it.

 

[joemamma]

have alt and battery checked for free at autozone or orilleys -they can do it while both are still in the car

 

[95REGF150]

Just because the oreillys free test came back good doesnt always mean your out of the woods. Had similar issues with an aftermarket alternator on my truck. Had the parts store warranty so they wouldnt replace it without it testing bad on their tester. Kept coming back good but when I checked the voltage with my multimeter it was always low at idle. Just sucked it up and bought another one and the problem was fixed. Moral of the story is dont rely only on those keyboard robots at the parts store

 

[chefbrown12014]

The power levels has never dropped and engine power has stayed constantly normal. Idle is rough and the blinking. She has also started overheating....which might be unrelated...not sure.

Alternator would cauae that? My last car...who alternator went bad...wouldnt stay charged and would lost power when drawing more electrical power. None of that happens here. Someone suggested i check the crank postion sensor.

 

[greddy_1700]

Looks like a voltage regulator to me. And since its internal to the alternator, I agree that replacing the alternator seems like the most likely fix.

 

[mitsubishikid]

if your getting a new alternator anyway, I suggest you get the better 90 amp unit from the "96-"98 Mitsubishi Galant with the auto trans, it's a plug and play unit, but don't forget to swap your stock 2g alternator fuse over to a 100amp fuse from the parts store.

 

[chefbrown12014]

I will just need the alt and the fuse if i go that route? Why a galant alt over one for the gsx?

 

[Mello]

It's has a higher output (90amps) than the stock alternator Mitsubishi used on the 2G's from the factory 75amps.

 

[mitsubishikid]

I will just need the alt and the fuse if i go that route? Why a galant alt over one for the gsx?

exactly what mello said, these are a great upgrade for minimal cost, in some cases the galant alternators are gonna be cheeper then dsm ones, It's the GSX tax , if you want to save some ca$h you can even get this unit from a junkyard and get the fuse there too, as long as it is not blown, and get a bargain deal on a used oem unit, which in many cases, tend to last a lot longer then parts store units.

 

[Brando_DSM]

galant alternator ftw. 90a direct bolt on no modification necessary. great for if you have extra draw in your system. make sure you go to napa for it too don't get sucked into the advanced auto etc units

 

[chefbrown12014]

You guys have a parts number for that alt?

 

[Brando_DSM]

You guys have a parts number for that alt?

https://www.napaonline.com/en/p/RSE2139101

 

[boostdawd]

Check the voltage using a voltmeter as it's doing this. I agree with everyone else about it being an electrical issue. Perhaps your alternator is on its way out.

 

[chefbrown12014]

I am going to replace BOTH the crank position sensor and the alt. Better safe than sorry

 

[pat white]

The power levels has never dropped and engine power has stayed constantly normal. Idle is rough and the blinking. She has also started overheating....which might be unrelated...not sure.

Alternator would cauae that? My last car...who alternator went bad...wouldnt stay charged and would lost power when drawing more electrical power. None of that happens here. Someone suggested i check the crank postion sensor.

overheating ? when idling or driving ...maybe because the fans are't getting enough power or the fan motor is on the way out and causing an electrical problem ...worth checking to see if functioning ok ...my 2 cents

 

[Pulids27]

A low electrical charge could also cause
Your injectors to not work properly.

 

[JPenny]

Hey if you have not tried yet I strongly recommend the alternator. I had a very similar experience. Many arguments with oreilys and testing all kinds of parasitic draw on my battery. I just bit the bullet and did the galant swap and 100 percent fixed my issue. Yes every case is different but I know the headache I went through..driving at night was honestly embarrassing. Good luck man.

 

[petegsx]

Any difference in 1g and 2g alternators electrical connections ? What about this 96-98 galant, is it direct fit, plug and play?

 

[mitsubishikid]

Any difference in 1g and 2g alternators electrical connections ? What about this 96-98 galant, is it direct fit, plug and play?

The electrical connections are different between 1g and 2g cars so 96-98 galant won't work as is... ...well not without hacking a 1G electrical connector, but there are a few options you can use if you have a 1G there is a 90 amp 1G unit that was used on the "91-"92 Galant vr4 and many auto trans equipped 1g cars had the 90 amp unit too,I recently discovered another commonly seen vehicle, that happens to have an internally regulated [with the same 1G connector], 110 amp unit and a 130 amp unit, that might work on our 1G cars, but i'm not sure if it will clear all the belts and the frame yet, I'll share the info when I test fit it in my 1G.