1500 + idle

[MegaSuiter]

I tested it like 4 different time! I will fo sho get a ohmmeter tomorrow and take it out and check it with power on. Is the o ring messed up most times when taken out?

 

[WaRrIoRs16]

Here is what your ISC should do when you turn the key. Good ISC & ISC drivers


Here is what it should not do. Faulty ISC System In this case, a couple of the ISC drivers were fried. After replacing the drivers, the ISC moved just like in the first video.

 

[gramkrakr89]

Quoting MegaSuiter:
Also the two nipples that come off the EGR valve on the pic you posted on my other thread...Is it okay if those aren't blocked and nothing leads to them. I mean they are just sitting there. I don't feel any vacuum from them, but just curious.



cap them off

 

[MegaSuiter]

ISC Drivers? It did not vibrate at all. I couldn't even feel movement.

 

[WaRrIoRs16]

ISC Drivers

The 47uF capacitor shown in the upper left hand corner of the above picture will leak and cause a short on the trace in the picture below. This causes the ISC drivers to blow.


Definitely check out the resistance on the ISC. Heres a video on how to do it. 4G63 ISC Testing

 

[MegaSuiter]

My check engine light just came on and my idle is starting to drop really low, almost stall, when I put it in nuetral from like 4k rpms.... Definitely ISC...

 

[beaner]

Sounds like a bad ECU now. Did you adjust the BISS like I suggested in the other thread to get the ISC somewhat in it's operating range?

 

[MegaSuiter]

No i haven't. Driving on a bad ecu bad for the car?

 

[beaner]

Who knows do whatever you want man.

 

[MegaSuiter]

Okay... Any other opinions?

 

[gramkrakr89]

pull the ECU and send it out - your ISC could be blown or shorted, which took out the drivers...

My galant ran fine with bad ISC drivers, I think your ECU just needs a general going over - it's not that expensive... mine had extensive cap leak damage and damage from a poor repair job - it works great now, after a good going over by professionals

 

[MegaSuiter]

FINALLY tested it. Dead coil between 5-6. If I leave it unplugged could i have maybe saved my ecu? i mean i know it could already be fried, but is there a chance?

 

[stealthtt24]

There's a chance but stop asking for advice and send the ecu for repairs. Do that and then replace the isc and sounds like you're good to go.

 

[vtecds1]

Your isc might be dead, but it doesnt really mean u fried the ecu. Check it out first before you send it out.

 

[WaRrIoRs16]

Just take a look at your ECU. You may not have to send it out for repairs. If the capacitors haven't been replaced, its not a difficult task. Also you can replace any ISC drivers that might have failed. If you had ISC drivers that failed, you may have a burnt trace that will require a repair or jumper wire like I did.

Pulling your ECU is easy and will probably put an end to the goose hunt.