Pectel P8 engine loom
25-01-2009, 05:53 AM
#1
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Pectel P8 engine loom
Hi guys, need some help/advise,a friend of mine has a 3door that has a P8 engine loon fitted,the car starts and runs fine,but none of the instruments are working. Can the loom be used with the original instrument cluster,and shoul all the gauges work?? There is no connector for the temp gauge,the rev counter doesnt work (may not be connected). Also can a pectel monitor be used? Or an secs monitor? Any help/advise would be great.
25-01-2009, 11:14 AM
#2
"Pectel P8 engine loom" doesn't mean a lot unfortunately (the loom could have been made for lots of different specs) , but I'll try to help.
If the loom is for a 4x4 head, then the sender location for the temp gauge is towards the rear of the head on the inlet side, as opposed to the front of the head on the turbo side of the 2wd head. Perhaps the wire is in the loom and simply needs to be extended. Standard wire colour is brown/white.
The rev counter wire is usually in the engine loom, and feeds to the gauge via the 9-way multiplug that connects the engine and car looms. The wire is green, and takes a feed straight from the ignition coil to the multiplug. Check that there is continuity between the coil and the multiplug, and that the multiplug has the connectors in the right place. If the engine has been converted to run a coil pack instead of the original coil, or escort small turbo coil packs, then a mod will be required to the clocks.
A Pectel monitor can be used with any loom if the appropriate connections are made (total of 4 wires are required) and the chip in the ECU has the Pectel coms enabled - talk to the person who wrote the chip to find out if this is the case.
A SECS monitor can be connected to the loom - it simply piggybacks the standard sensors. Access to the ECU loom connector will be required to add additional wires.
If the loom is for a 4x4 head, then the sender location for the temp gauge is towards the rear of the head on the inlet side, as opposed to the front of the head on the turbo side of the 2wd head. Perhaps the wire is in the loom and simply needs to be extended. Standard wire colour is brown/white.
The rev counter wire is usually in the engine loom, and feeds to the gauge via the 9-way multiplug that connects the engine and car looms. The wire is green, and takes a feed straight from the ignition coil to the multiplug. Check that there is continuity between the coil and the multiplug, and that the multiplug has the connectors in the right place. If the engine has been converted to run a coil pack instead of the original coil, or escort small turbo coil packs, then a mod will be required to the clocks.
A Pectel monitor can be used with any loom if the appropriate connections are made (total of 4 wires are required) and the chip in the ECU has the Pectel coms enabled - talk to the person who wrote the chip to find out if this is the case.
A SECS monitor can be connected to the loom - it simply piggybacks the standard sensors. Access to the ECU loom connector will be required to add additional wires.
25-01-2009, 06:20 PM
#3
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pectel p8
Hi, Thanks for the reply, sorry didnt give enough info, The car is an RS500 running 8 greens,cam pickup,coil pack and i think 12 stage adjustable boost. As far as i know its a mountune built engine running a pectel wrc engine loom.What mod is needed for the rev counter? Very greatfull for your help.
25-01-2009, 08:56 PM
#4
If you have an SECS/Motorsports Development coilpack board fitted, you'd do best either phoning Stu at MSD on Monday or dropping him a PM about the rev counter. I'm sure I remember reading that the 3dr rev counters are less likely to work correctly after being modified.
If the ECU doesn't have an MSD coilpack board fitted (it is possible on the P8 ECUs to run a coilpack without one of these boards) and if you're prepared to do some rewiring, then there is a modification to the rev counter feed that may work. Let me know if this is of interest, as I can't be bothered to type instructions now.
Alternatively, an 80mm Stack rev counter fits in the clocks fine with a bit of work and will definately work 100% - looks better too.
If the ECU doesn't have an MSD coilpack board fitted (it is possible on the P8 ECUs to run a coilpack without one of these boards) and if you're prepared to do some rewiring, then there is a modification to the rev counter feed that may work. Let me know if this is of interest, as I can't be bothered to type instructions now.
Alternatively, an 80mm Stack rev counter fits in the clocks fine with a bit of work and will definately work 100% - looks better too.
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