CEL blinks these codes.

BackWoodsBob · #1 04-26-2012, 03:47 PM

First off the engine has been transplanted into a different chassis, so pulling the P code isn't possible as there is no connector for it.

Using the flashing CEL method these are the codes I have.

24
15
18
16
17
19

Any ideas on this?

Code reference sheet
http://downloads.eatoncanada.ca/down...%20rev%207.pdf

I called the local autozone and they don't have a code book for 89+

Blacky · #2 04-26-2012, 04:09 PM

I'm not sure what you're asking for. Is the engine OBD1 or OBD2.
These codes from an OBD1 engine indicate:

15. Fuel injector #2
16. " "#3
17. " "#4
18. " "#5
19. " "#6
24. By-pass air control solenoid valve or circuit

cthommes · #3 04-26-2012, 04:30 PM

Quote:

Originally Posted by BackWoodsBob

Any ideas on this?

Code reference sheet
http://downloads.eatoncanada.ca/down...%20rev%207.pdf

I called the local autozone and they don't have a code book for 89+

Err... the code reference sheet you link is for an Eaton SVX9000 Variable Frequency Drive. Probably not useful to diagnose engine trouble codes on your Subaru SVX.

BackWoodsBob · #4 04-26-2012, 04:41 PM

Quote:

Originally Posted by Blacky

I'm not sure what you're asking for. Is the engine OBD1 or OBD2.
These codes from an OBD1 engine indicate:

15. Fuel injector #2
16. " "#3
17. " "#4
18. " "#5
19. " "#6
24. By-pass air control solenoid valve or circuit

THANKS!!
Hmmm... It appears to be an injector issue.
I have the BPACS deleted.

But the injectors, wtf would cause 5/6 injectors to puke an error?
They have ground at the ECU plug, they DO NOT have power under the 'on' position.

I'm pouring fuel out of my exhaust manifold while cranking.
All grounds have continuity to the chassis.

Quote:

Originally Posted by cthommes

Err... the code reference sheet you link is for an Eaton SVX9000 Variable Frequency Drive. Probably not useful to diagnose engine trouble codes on your Subaru SVX.

LOLOLOL :facepalm:

oab_au · #5 04-26-2012, 05:41 PM

Quote:

Originally Posted by BackWoodsBob

THANKS!!
Hmmm... It appears to be an injector issue.
I have the BPACS deleted.

But the injectors, wtf would cause 5/6 injectors to puke an error?
They have ground at the ECU plug, they DO NOT have power under the 'on' position.

I'm pouring fuel out of my exhaust manifold while cranking.
All grounds have continuity to the chassis.

LOLOLOL :facepalm:

The Injectors should have power when the igntion is on, the ECU grounds the injector when it is to spray fuel.

Harvey.

BackWoodsBob · #6 04-26-2012, 06:01 PM

Hmmm... so no power while ignition 'on' means they're closed. But how can they be stuck open with no current and dump fuel?
Aside from the injectors being stuck open, would anything else keep this engine from running?

oab_au · #7 04-26-2012, 06:16 PM

Quote:

Originally Posted by BackWoodsBob

Hmmm... so no power while ignition 'on' means they're closed. But how can they be stuck open with no current and dump fuel?
Aside from the injectors being stuck open, would anything else keep this engine from running?

The injectors can't be "stuck open" if there is no power going to them.

If fuel is running out the exhaust, then it must be coming from some where like the pressure regulator vacuum pipe? You will have to look at all the wiring that you have changed.

Harvey.

BackWoodsBob · #8 04-26-2012, 06:26 PM

Quote:

Originally Posted by oab_au

The injectors can't be "stuck open" if there is no power going to them.

If fuel is running out the exhaust, then it must be coming from some where like the pressure regulator vacuum pipe? You will have to look at all the wiring that you have changed.

Harvey.

Pressure regulator vacuum pipe?
Well, it's only coming out of the driver side manifold.
Something very weird is going on with the wiring. Everything I've wired in is correct as far as power, ground and merging ignition 'on' power goes.

I just re-multimetered the injector plugs. .2volts with ignition 'on'.

oab_au · #9 04-26-2012, 06:44 PM

Quote:

Originally Posted by BackWoodsBob

Pressure regulator vacuum pipe?
Well, it's only coming out of the driver side manifold.
Something very weird is going on with the wiring. Everything I've wired in is correct as far as power, ground and merging ignition 'on' power goes.

I just re-multimetered the injector plugs. .2volts with ignition 'on'.

Well obversely the wiring is not correct, so I would check it all again.

Harvey.

BackWoodsBob · #10 04-26-2012, 06:59 PM

Quote:

Originally Posted by oab_au

Well obversely the wiring is not correct, so I would check it all again.

Harvey.

I did not prep this harness, I merely merged the required wires to the stock bulkhead harness. Every wire matches the corresponding wire on the pin outs and diagrams. Both FSM pin-outs, diagrams and user made pin-outs all match.

Would this point to the wire harness prepper being at fault? I'm not above making an error, but at the same time the number of cross references I've done for accuracy would point away from myself.

Though if I am at fault I have no issue in facing that.

oab_au · #11 04-26-2012, 07:18 PM

Quote:

Originally Posted by BackWoodsBob

I did not prep this harness, I merely merged the required wires to the stock bulkhead harness. Every wire matches the corresponding wire on the pin outs and diagrams. Both FSM pin-outs, diagrams and user made pin-outs all match.

Would this point to the wire harness prepper being at fault? I'm not above making an error, but at the same time the number of cross references I've done for accuracy would point away from myself.

Though if I am at fault I have no issue in facing that.

Well if you are getting "the injector plugs. .2volts with ignition 'on'." I would work back along the wiring from there, looking for the full battery voltage.
Do you read the same voltage on all the injectors?

Harvey.

BackWoodsBob · #12 04-26-2012, 09:37 PM

Can anyone tell me the COLOR of the wire on the ECU plug that is used to clear the code by grounding it out?

Is it the 'read memory' blue and white wire?

oab_au · #13 04-26-2012, 09:57 PM

Quote:

Originally Posted by BackWoodsBob

Can anyone tell me the COLOR of the wire on the ECU plug that is used to clear the code by grounding it out?

Is it the 'read memory' blue and white wire?

Looking at the book it looks like it is either the blue/white or the orange wire next to it. Plug B61 pin 12/13.

Harvey.

BackWoodsBob · #14 04-26-2012, 10:31 PM

Got it, grounded it out, code still present. Thank you for taking the time to look!

Using a multimeter we found that the injectors polarity is backwards. Instead of having a communal +12volt they have a communal +.03 volts ON THE NEGATIVE side of the connector.

All grounds and positives check out on the ECU power. Everything has been merged correctly, at least what I have done. What the heck would cause the ECU to spit out .03 volts instead of 12 AND spit out the incorrect polarity?

I'm at a total loss here as to what I should try/do next...

oab_au · #15 04-26-2012, 10:42 PM

Quote:

Originally Posted by BackWoodsBob

Got it, grounded it out, code still present. Thank you for taking the time to look!

Using a multimeter we found that the injectors polarity is backwards. Instead of having a communal +12volt they have a communal +.03 volts ON THE NEGATIVE side of the connector.

All grounds and positives check out on the ECU power. Everything has been merged correctly, at least what I have done. What the heck would cause the ECU to spit out .03 volts instead of 12 AND spit out the incorrect polarity?

I'm at a total loss here as to what I should try/do next...

No that sounds wrong. The ECU does not provide 12 V for the injector, there is always 12 V at the injector, when the key is on, the ECU just grounds the injector. The polarity is 12V + to the injector, ECU grounds to Neg.
I still does not sound like there is 12V supply to them.

Ment to add. The .03V is just a floating voltage from the turned off switching transistor.

Harvey.