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CEL Solid, ECU insight please


Brunoboy
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Galant VR-4 org Post #: 921755 posted 08/10/10 02:13 PM     Remind Me!  Send Private Message   Edit Post      
So after my last ECU took a crap, I replaced it with one that didnt work, then replaced it with the one i have now, I heard that when you turn the Ignition on, the CEL is supposed to come on for 5 seconds than turn off, is this true? Mine stays on, until I turn the car on, then itll shut off, is something wrong? I noticed the Fuel pump relay didnt get power, and the ISC still doesnt work.
-Shane



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dsm10o0
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Galant VR-4 org Post #: 921759 posted 08/10/10 02:55 PM     Remind Me!  Send Private Message   Edit Post      
Yeah, it's suppose to turn off after a couple seconds. If it stays on, they you have a cel code.

Do you have a code reader? If not check this and I'll show you the codes.

click



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Brunoboy
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Galant VR-4 org Post #: 921778 posted 08/10/10 04:25 PM     Remind Me!  Send Private Message   Edit Post      
this is with the car off, it shuts off when the car is turned on. and Hold my dog lol, I can take him in two weeks my mom said,we are currently renovating the house.



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
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prove_it
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Galant VR-4 org Post #: 921845 posted 08/10/10 09:01 PM     Remind Me!  Send Private Message   Edit Post      
uhhhhh... what?



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Brunoboy
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Galant VR-4 org Post #: 921920 posted 08/11/10 05:34 AM     Remind Me!  Send Private Message   Edit Post      
The car has three key turns on the ignition right? ACC , Run, Start. When the car is turned to Run, the CEL comes on, but never shuts off, from what I heard its supposed to shut off after 5 seconds, is this a faulty ecu?
-Shane



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

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brisvr4
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Galant VR-4 org Post #: 921921 posted 08/11/10 06:22 AM     Remind Me!  Send Private Message   Edit Post      
It should turn off about 5 seconds after you start the car.



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SouthCaliVR4
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Galant VR-4 org Post #: 921960 posted 08/11/10 11:12 AM     Remind Me!  Send Private Message   Edit Post      
+1 engine has to be running for the light to go out.



How do you make a small fortune racing? Start with a very large one!!!

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Brunoboy
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Galant VR-4 org Post #: 921978 posted 08/11/10 12:50 PM     Remind Me!  Send Private Message   Edit Post      
oh ok, yea then it works, i still dont know why the ISC doesnt work though 0_o.



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

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SouthCaliVR4
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Galant VR-4 org Post #: 922022 posted 08/11/10 03:14 PM     Remind Me!  Send Private Message   Edit Post      
Finding more than one ecu with a bad isc driver would not surprise me. isc goes bad takes driver with it, it's one of the reasons so many have blocked off the isc & run without one.



How do you make a small fortune racing? Start with a very large one!!!

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Brunoboy
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Galant VR-4 org Post #: 922058 posted 08/11/10 05:01 PM     Remind Me!  Send Private Message   Edit Post      
Isc blockoff does what to the car?



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

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stevep
Fixes ECUs


Galant VR-4 org Post #: 922869 posted 08/15/10 12:48 PM     Remind Me!  Send Private Message   Edit Post      
Quoting brisvr4:

It should turn off about 5 seconds after you start the car.



Quoting SouthCaliVR4:

+1 engine has to be running for the light to go out.




I haven't noticed any difference in the ECU code that would change the behavior from what I see regularly, which is the CEL will turn off about five seconds after you turn the ECU on, regardless of engine running or not. DSMLink may be different, I didn't go put my other ECUs in the car to check.

Would you two please go verify that it doesn't turn off if you don't start the engine? Just turn the key on and wait.

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Brunoboy
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Galant VR-4 org Post #: 922870 posted 08/15/10 01:20 PM     Remind Me!  Send Private Message   Edit Post      
Quoting SouthCaliVR4:

Finding more than one ecu with a bad isc driver would not surprise me. isc goes bad takes driver with it, it's one of the reasons so many have blocked off the isc & run without one.



i bought a blockoff plate...



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

Posts: 2880 | From: San Bruno,CA Home of SFO | Member Since: 04/25/08 | IP: (74.51.155.23) | Report this post to a Moderator

Brunoboy
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Galant VR-4 org Post #: 922871 posted 08/15/10 01:21 PM     Remind Me!  Send Private Message   Edit Post      
Quoting stevep:

Quoting brisvr4:

It should turn off about 5 seconds after you start the car.



Quoting SouthCaliVR4:

+1 engine has to be running for the light to go out.




I haven't noticed any difference in the ECU code that would change the behavior from what I see regularly, which is the CEL will turn off about five seconds after you turn the ECU on, regardless of engine running or not. DSMLink may be different, I didn't go put my other ECUs in the car to check.

Would you two please go verify that it doesn't turn off if you don't start the engine? Just turn the key on and wait.




if its not on, it doesnt shut down...



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

Posts: 2880 | From: San Bruno,CA Home of SFO | Member Since: 04/25/08 | IP: (74.51.155.23) | Report this post to a Moderator

stevep
Fixes ECUs


Galant VR-4 org Post #: 923057 posted 08/16/10 03:19 PM     Remind Me!  Send Private Message   Edit Post      
We seem to be having continuing communications problems. Please reread what I posted.

It's not like I didn't verify it before hand. A stock ECU will turn off the CEL after five seconds regardless of the engine running or not. I can't easily check what DSMLink V3 does but I'll go put my V2 ECU in and double check it....

I just double checked DSMLink V3 and it also turns off the CEL after five seconds regardless of the engine running on not.

What I asked was, for the two people who asserted that the engine needed to be running double check their data since it doesn't match my 10 years of experience working on our ECUs or the almost 20 years sitting in the drivers seat.

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SouthCaliVR4
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Galant VR-4 org Post #: 923385 posted 08/17/10 04:19 PM     Remind Me!  Send Private Message   Edit Post      
Your right, my bad. I work on a lot of cars every day & many do keep a check engine light on till the engine starts ours however, do not. Yes after checking my own Gvr4 the light does switch off after about five sec engine running or not. Sorry about the misinformation.



How do you make a small fortune racing? Start with a very large one!!!

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Brunoboy
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Galant VR-4 org Post #: 923390 posted 08/17/10 04:31 PM     Remind Me!  Send Private Message   Edit Post      
my check engine light stays on when the car isnt on, when i turn it on, it shuts off within 5 secs. does this clarify?



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

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SouthCaliVR4
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Galant VR-4 org Post #: 923399 posted 08/17/10 04:59 PM     Remind Me!  Send Private Message   Edit Post      
On mine, Key on engine off, light goes out after five sec. Key on engine running, light goes out after 5 sec. Are you saying yours stays on when the key is off?



How do you make a small fortune racing? Start with a very large one!!!

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Brunoboy
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Galant VR-4 org Post #: 923427 posted 08/17/10 06:18 PM     Remind Me!  Send Private Message   Edit Post      
Key on engine off light stays solid and key on engine on 5 sec and it turns off



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

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SouthCaliVR4
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Galant VR-4 org Post #: 923431 posted 08/17/10 06:36 PM     Remind Me!  Send Private Message   Edit Post      
Damn if you where a tad closer I'd just head over & hook up my scanner. Do you or anyone you know have access to a scanner you can use to check codes & data. Maybe a logger or use the vfaq flash code deal, I've had a scanner for the last twenty so I'm unsure how this is done or I could do better that saying there's a way to flash the codes by shorting pins on the check connector.

Basically what I'm trying to say is, You're gonna need to communicate with the ecu to find out what is causing it to stay on after the self check period.



How do you make a small fortune racing? Start with a very large one!!!

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Brunoboy
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Galant VR-4 org Post #: 923444 posted 08/17/10 07:12 PM     Remind Me!  Send Private Message   Edit Post      
I have a logger with mmcd and ecmlink



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

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SouthCaliVR4
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Galant VR-4 org Post #: 923519 posted 08/17/10 11:19 PM     Remind Me!  Send Private Message   Edit Post      
Funny I don't remember ending that last sentence with the word period, how freaking weird is that. I swear if someone talks to me while I type I start typing what they say, Musta been thinking period as in end of sentence & typed it out

Anyway, do you have any codes stored in the system?

After a quick reread of your posts I'm thinking the failure to energise the fuel pump or even a bad isc driver could cause the light to stay on. You getting any actual issue or just the weirdo light thing?



How do you make a small fortune racing? Start with a very large one!!!


Edited by SouthCaliVR4 (08/17/10 11:22 PM)

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Brunoboy
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Galant VR-4 org Post #: 923613 posted 08/18/10 03:47 AM     Remind Me!  Send Private Message   Edit Post      
no codes pop up, just the isc doesnt power on, and the fuel pump doesnt power on, so i tapped the 12v mpi relay to the fuel pump relay wire, and it works now.......



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

Posts: 2880 | From: San Bruno,CA Home of SFO | Member Since: 04/25/08 | IP: (74.51.155.23) | Report this post to a Moderator

Brunoboy
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Galant VR-4 org Post #: 923976 posted 08/19/10 11:34 AM     Remind Me!  Send Private Message   Edit Post      
you know what, I havent really checked it out again, I know I energized the pump, but maybe its still tossing a code? What If there is no code, then what is it thats keeping the CEL on?
-Shane



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

Posts: 2880 | From: San Bruno,CA Home of SFO | Member Since: 04/25/08 | IP: (74.51.155.23) | Report this post to a Moderator

Brunoboy
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Galant VR-4 org Post #: 924124 posted 08/19/10 07:44 PM     Remind Me!  Send Private Message   Edit Post      
I got a ecu from drax, it fixed my problems....



556/1000 KG 8/10/13 .... Sold
352/1000 Summit White sold in 2011 and was totaled by new owner......
92 Eclipse Gsx R.I.P
96 Eclipse Gsx Sold

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mitsuturbo
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Galant VR-4 org Post #: 924164 posted 08/19/10 10:03 PM     Remind Me!  Send Private Message   Edit Post   
You should be able to either fix yours or get it fixed inexpensively. Good luck. I hope your traces aren't all buggered up!



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