Post #1
Hi my Ecu I got with my engine is ment to be decoded. How could I tell if it's not, the engine is turning but not firing if u spray in a Littel easy start it will fire on that but that's it. The car is pumping fuel up to the rail so i changed the injection loom thinking it was that but still no joy .Could any body help
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displaying posts 1 to 13 of 13
| Author | Subject: V6 engine and ecu |
 yadam
Junior User  Location: exter Registered: 15 Oct 2010 Posts: 53 Status: Offline |
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 Posted 10th Nov 2011 at 12:47
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simonjames
Seasoned Pro  Location: Whitland S.Wales Registered: 23 Nov 2004 Posts: 6,219 Status: Offline |
Post #2
is fuel pump going when turned over? could a crank sensor ? multi relay ?________________________________________ All South Wales Members Click HereTeam Supercharged Black RALLYE ™ (Click Here for Build Project) MY EBAY ITEMS 07943066306 |
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Posted 10th Nov 2011 at 13:20
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yadam
Junior User Location: exter Registered: 15 Oct 2010 Posts: 53 Status: Offline |
Post #3
Do u mean the engine or car fuel pump the car pumps fuel up the rail nd if u press the valve on the rail fuel will spray out |
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Posted 11th Nov 2011 at 09:32
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simonjames
Seasoned Pro Location: Whitland S.Wales Registered: 23 Nov 2004 Posts: 6,219 Status: Offline |
Post #4
Any idea if it spraying whilst being turned over? not sure about v6 but 6 engine the crank sensor/multi relay allow the injector to open so if crank sensor not working or relay not sending signal injector wont spray (or sparks wont spark)Easiest thing to do is check if you have spark at the plugs (i'd say you have as it does fire up) and fuel out the injectors (not just at the rail) i had 1 once that had both spark and fuel, timing was spot on trned out to be an ect sensor flooding the plug with fuel ________________________________________ All South Wales Members Click HereTeam Supercharged Black RALLYE ™ (Click Here for Build Project) MY EBAY ITEMS 07943066306 |
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Posted 11th Nov 2011 at 10:33
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #5
it works exactly like the gti6 system, though does have two double relays________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 11th Nov 2011 at 12:04
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yadam
Junior User Location: exter Registered: 15 Oct 2010 Posts: 53 Status: Offline |
Post #6
Ok there is no fuel goin thro the injectors so I check the sensors |
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Posted 11th Nov 2011 at 13:39
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simonjames
Seasoned Pro Location: Whitland S.Wales Registered: 23 Nov 2004 Posts: 6,219 Status: Offline |
Post #7
Yes i'd say 1 of double relays has failed and therefore not giving the ecu signal to switch the injectors________________________________________ All South Wales Members Click HereTeam Supercharged Black RALLYE ™ (Click Here for Build Project) MY EBAY ITEMS 07943066306 |
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Posted 11th Nov 2011 at 14:19
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #8
relay doesnt give signals, ecu does  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 11th Nov 2011 at 15:29
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simonjames
Seasoned Pro Location: Whitland S.Wales Registered: 23 Nov 2004 Posts: 6,219 Status: Offline |
Post #9
ecu gives the signal after the relay has ________________________________________ All South Wales Members Click HereTeam Supercharged Black RALLYE ™ (Click Here for Build Project) MY EBAY ITEMS 07943066306 |
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Posted 11th Nov 2011 at 17:44
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #10
its a relay....________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 11th Nov 2011 at 17:54
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simonjames
Seasoned Pro Location: Whitland S.Wales Registered: 23 Nov 2004 Posts: 6,219 Status: Offline |
Post #11
crank sensor send yay or nay the relay relay passes yay or nay to ecu ecu sends yay or nay to components ......................... ________________________________________ All South Wales Members Click HereTeam Supercharged Black RALLYE ™ (Click Here for Build Project) MY EBAY ITEMS 07943066306 |
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Posted 11th Nov 2011 at 18:47
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #12
no, crank sensor is connected to the ecu and the ecu only.a relay does not send signals, its activated by the ecu to power up injectors/coilpack/fuel pump. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 11th Nov 2011 at 18:57
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simonjames
Seasoned Pro Location: Whitland S.Wales Registered: 23 Nov 2004 Posts: 6,219 Status: Offline |
Post #13
i thought it went through the relay to the ecu, doesnt matter anyway they are all linked, if crank goes on stop relay doesnt get yay from ecurelay powering up inj/coil/fuel is what i meant by sending the signal ________________________________________ All South Wales Members Click HereTeam Supercharged Black RALLYE ™ (Click Here for Build Project) MY EBAY ITEMS 07943066306 |
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Posted 11th Nov 2011 at 19:17
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