engine transplant - Electrical Forum - Peugeot 306 GTi-6 & Rallye Owners Club

displaying posts 1 to 14 of 14

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Subject: engine transplant

stewie

Newbie

Location: rakaia

Registered: 02 Oct 2015

Posts: 8

Status: Offline

Post #1

Hi to all from New Zealand

I really need help

I have just done an engine transplant, 1997 GTI6 engine (full rebuild) into a 1995 XSI (2L 8V) and ran into big problems.
Engine loom transfered at same time. initial start-up engine wound over but no fire. suspected locked ECU. Purchased an unlocked ECU from Cartech electronics ltd. Installed the new ECU (IAW 1AP .10). Engine runs, but only on 2 cylinders (2and 4) 1 and 3 have no spark or fuel. Emails back and forth have not been able to trace the problem so far.
I cannot get a flash code (cannot find a green plug) and there is'nt an OBD port under the dash.
I have changed crank angle, cam sensors and coilpacks. Has anybody done this transplant before? Could you Please HELP !! whilst I still have some hair to pull out

Posted 3rd Oct 2015 at 01:10

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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,769

Status: Offline

Post #2

This thread: http://www.306gti6.com/forum/showthread.php?id=150807 should help you find out whether the ECU is sending the correct signals to drive the coils and injectors for cylinders 1 & 3.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love

Posted 3rd Oct 2015 at 08:59

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rikky Pikey

Location: cheshire

Registered: 28 Feb 2004

Posts: 26,801

Status: Offline

Post #3

the ODB plug is under the dash on the p2/p3, but on the P1 it's a green plug next to the ECU. so you won't have it (assuming you have a p1 car with a p2/p3 engine and loom)

________________________________________

306 rallye reproduction decals (full sets/individual decals) | 306 b-pillar textured vinyl weatherstrips
306 slam panel esso stickers | 306 yellow / orange / pension fund red side door badges
gti6 inlet manifold badges | 306 rear boot badges (p2/p3)
winner of Extraction of toys from prams with outstanding vigour award 2009 [source: gti6 owners club]

Posted 3rd Oct 2015 at 10:47

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adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,829

Status: Offline

Post #4

Check the double relay is working ok. Also check pins into the ecu are all ok.

Does the flywheel make a difference? In terms of its signal to the crank sensor

________________________________________

Nothing to see here

Posted 3rd Oct 2015 at 14:50

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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,769

Status: Offline

Post #5

When the engine is running check to see if you have 12v at the injectors and coil packs when they are unplugged. If not, trace the wiring back in the loom and to the ECU pins. If there is no signal there the ECU drivers could well not be working correctly.

As Rikky says you won't have an OBD port or green plug on a later loom so diagnostics won't work.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love

Posted 3rd Oct 2015 at 16:19

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Puggitt

Regular

Location: New Zealand

Registered: 07 May 2012

Posts: 293

Status: Offline

Post #6

Too bad you're in the South Island buddy, I'm in Hamilton and have heaps of spare I could plug and play and help you out but a bit too far. Checked all your earths? Possible double relay

Posted 5th Oct 2015 at 07:38

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stewie

Newbie

Location: rakaia

Registered: 02 Oct 2015

Posts: 8

Status: Offline

Post #7

Hi All
thanks for your replies, sparkie comming in a couple of days to check your suggestions.You have been more help than the ECU supplier.

Posted 5th Oct 2015 at 18:20

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adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,829

Status: Offline

Post #8

Are the 8v and 16v flywheels the same for the crank sensor. Which did you fit? I think they probably are but just thinking..

________________________________________

Nothing to see here

Posted 5th Oct 2015 at 23:15

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stewie

Newbie

Location: rakaia

Registered: 02 Oct 2015

Posts: 8

Status: Offline

Post #9

Yes both flywheels are the same checked and double checked (same part number) Smile

Posted 6th Oct 2015 at 05:59

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stewie

Newbie

Location: rakaia

Registered: 02 Oct 2015

Posts: 8

Status: Offline

Post #10

Hi Guys
Can you tell me if this will work.
I still have the donor car that I removed the engine from. If I take the OBD plug with a length of wiring( the 3 wires to the ECU ) and splice them into the correct wires close to the ECU, should we be able to run a diagnostic that way ??
Thanks in advance

Posted 7th Oct 2015 at 06:50

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,871

Status: Offline

Post #11

yes, you might need a switched 12v too, possibly an earth.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 7th Oct 2015 at 10:26

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stewie

Newbie

Location: rakaia

Registered: 02 Oct 2015

Posts: 8

Status: Offline

Post #12

Hi Guys
Sorry to be a pain
I have taken the OBD plug from the donor car, but wire colour code does not match the wiring diagrams. According to the diagram, should be 3=red 7=green 15=beige
on this plug I have 1=red, 2 blank, 3=2browns, 4=light green/yellow, 5=dark green/yellow, 6=grey, 7=orange, 8=(smaller) red, 9=blank, 10=blank, 11=mauve, 12=(2)orange and brown, 13=(2)mauve and grey, 14=grey, 15=blue/grey, 16=beige.

According to wiring diagrams 3 to 42, 7 to 31, 15 to 12, plug to ECU
getting very confused

Posted 8th Oct 2015 at 04:24

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Puggered

Junior User

Location: under Down under

Registered: 18 Jan 2013

Posts: 78

Status: Offline

Post #13

Ignore the colours.
The link Stan gave has all the info you need

Plug 3 - ecu 42
Plug 7 - ecu 31
Plug 15 - ecu 12

Posted 8th Oct 2015 at 13:39

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stewie

Newbie

Location: rakaia

Registered: 02 Oct 2015

Posts: 8

Status: Offline

Post #14

Hi All

Could you tell me if there is a way of getting the fault codes without a scanner ?

Thanks for your patience

Posted 15th Oct 2015 at 07:06

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