Found my fault hopefully

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pulsarmike

New Member
Has the ecu got numbered pins?

If so what number are both check engine pins

If your going say bell them out dont bother lol :lol:
 
bensmith907

bensmith907

New Member
geoff pine said:
SO no one bar loop then sounds like standard boost.
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Sorry that was my fault I assumed because there's no boost solanoid it was a 1bar loop but have since found out there's just a hose between the plenum and wastegate actuator with nothine else in the middle (no restrictor, boost controller or solanoid)

Bad Gen- sorry
 
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pulsarmike

New Member
bensmith907 said:
Sorry that was my fault I assumes
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Assumption is the mother of all ****ups

Haha dont worry mate youve helped me a lot, you wouldnt happen to know the size of pipe going to the standard boost gauge would you? just ordering a T piecew off ebay and its cold outside :shock:
 
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pulsarmike

New Member
Ok so having a look at that diagram now, it looks like a supply come from the top where the ignition is and pin 24 is an earth with a trigger relay when there is a fault?, the only way the light would iluminate is if pin 24 or the cable leading off to the chk engine light is earthed/shorting to earth somewhere but then it wouldnt flash it would be on constant.

although ive just contradicted myself above lol, the ecu must be fucked
 
bensmith907

bensmith907

New Member
dunno if its fu**ed. pin 24 isnt on the loom for the diagnosis connector.

Right- Pin 14 (on the ECU) is my favorite for a short. this comes out at the top, second from the right (on the diagnosis connector) and as I suspected the top right pin (on the diagnosis connector) is an earth. when you do the fault code check all your doing is shorting pin14 to earth the ecu recognises this then sends the fault code to the check light

If Im not quite making sence mate give us a shout tomorrow and I'll try to explain it better
 
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Fast Guy

Fast Guy

Moderators
Staff member
Pin 24 is just the earth for the bulb which takes a power supply from the fues. According to the link, it's seperate from the diagnostic loom.

When the ecu needs to illuminate the bulb it will earth it via the ecu- same way the rad fans come on.

Your light is working as you say it's flashing. Your consult software is working as you've shown. Are you connecting the correct 2 pins on the plug when you try the paper clip method?

Pin 23 is the check pin if I'm reading it right. Connect the igniton wire to it with a paperclip.

Sounds like your connector is upside down.
Fast Guy said:

connect chk and ign
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pulsarmike

New Member
Im gonna have a look at it 2moro, i managed to wire an old xantia 2.0 8v petrol turbo into a diesel 306 so this SHOULD be easy.

had 36 hours in the pug loom lol

But im sure ill give you a shout either way lol. :thumbsup:
 
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pulsarmike

New Member
Fast Guy said:
Pin 24 is just the earth for the bulb which takes a power supply from the fues. According to the link, it's seperate from the diagnostic loom.

When the ecu needs to illuminate the bulb it will earth it via the ecu- same way the rad fans come on.

Your light is working as you say it's flashing. Your consult software is working as you've shown. Are you connecting the correct 2 pins on the plug when you try the paper clip method?

Pin 23 is the check pin if I'm reading it right. Connect the igniton wire to it with a paperclip.

Sounds like your connector is upside down.
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The ecu light doesnt come on when you turn the ignition on it only comes on above 2k revs.

The other post mentions it being stuck in mode 2? Would being in this mode stop the ecu light coming on with the ignition?


As for the connector being upside down it isnt, i printed that picture off and did it with jonathan next to me and it didnt do a thing
 
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pulsarmike

New Member
Hmm just found this too......

Braveheart said:
Having googled, I found this: "Why use a paperclip? There's a diagnostic switch on the ECU itself. Grab a flat head screwdriver, put the key into the ON position (don't start the car), then rotate the screw on the ECU fully clockwise, count two seconds, then fully counter clockwise. You will then see your MIL on the dash flash with cooresponding codes. if 5 long 5 short, no codes detected.

To exit mode II, simply turn the screw clockwise fully, then counterclockwise again."
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Fast Guy

Fast Guy

Moderators
Staff member
bensmith907 said:
Right- Pin 14 (on the ECU) is my favorite for a short. this comes out at the top, second from the right (on the diagnosis connector) and as I suspected the top right pin (on the diagnosis connector) is an earth.
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If your connector isn't upside down then bottom left should be the earth and the one next to it pin 14, not top right as that should be power.
 
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pulsarmike

New Member
Fast Guy said:
If your connector isn't upside down then bottom left should be the earth and the one next to it pin 14, not top right as that should be power.
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My connector is the same is in the picture you posted

not sure mate I'll have a play tomorrow with my ecu and learn some more
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Great stuff, im hoping its just been turned by some wombat :-D
 
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