Coil pack plug affecting throtle pot reading
Discussion
Washed the car yesterday ready for MOT tomorrow.
Gone to fine tune the throttle pots/adaptives this afternoon and before I've even started the car I've noticed Tpot2 is reading > 50!
I immediately connected the plug to Tpot1 to see if it was the sensor or the wiring and the reading swaps over, so definitely the wiring.
Tracing the wiring loom back I notice the plug for the coil pack is on the same bit of loom, so I disconnect that and notice the reading falls by ~10. Having given the connector a good clean and disconnected/connected it several times the Tpot2 reading is now down to ~30 and disconnecting the coil plug lowers it by a further 5 points.
I thought it might be a coil degrading, but having connected the plug to the coil for the odd bank I get the same issue.
Anyone come across this before? I'm sure it's water ingress somewhere, but I can't see any signs of water ingress into the passenger footwell where some of the connectors are and I've tried my best to clean up the coil plug (it really doesn't look too bad anyway).
I did get some slightly funny readings across the multimeter when checking for continuity on the plug though.
Gone to fine tune the throttle pots/adaptives this afternoon and before I've even started the car I've noticed Tpot2 is reading > 50!
I immediately connected the plug to Tpot1 to see if it was the sensor or the wiring and the reading swaps over, so definitely the wiring.
Tracing the wiring loom back I notice the plug for the coil pack is on the same bit of loom, so I disconnect that and notice the reading falls by ~10. Having given the connector a good clean and disconnected/connected it several times the Tpot2 reading is now down to ~30 and disconnecting the coil plug lowers it by a further 5 points.
I thought it might be a coil degrading, but having connected the plug to the coil for the odd bank I get the same issue.
Anyone come across this before? I'm sure it's water ingress somewhere, but I can't see any signs of water ingress into the passenger footwell where some of the connectors are and I've tried my best to clean up the coil plug (it really doesn't look too bad anyway).
I did get some slightly funny readings across the multimeter when checking for continuity on the plug though.
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