Strange electrical problem - Page 4

oab_au · #46 12-08-2006, 08:58 PM

Quote:

Originally Posted by Dessertrunner

Trevor, Harvey in the end the relay caused problems with thte crusie so had to develope "plan B" which was to replace the netural switch in the gearbox and then put in a 40 amp relay wire with the two gearbox switches wires going to the in and out of the contacts on the relay and a smaller wire going from the power infeed from switch side into the "N" switch in the WRX box and then out to the coil on the relay. The other side of the relay was sent to ground.
Sorry for my poor expernation but I think you should understand this one. THe car works perfect and start straight away with out delay also I mesuared the voltage on the solinode at the starter and it is up around 12 which explains the quick start.
Have a good day I am going to meet the rest in Sydney tomorrow so I have a 650 k drive to get there and 650 k home should be good.
Tony

Glad you fixed it mate, but I did tell you about the relay, and cruise control, problem.

Harvey.

Trevor · #47 12-08-2006, 11:21 PM

The problem is that the exact reason for the strange voltage drop has still not been established.

Dessertrunner · #48 12-09-2006, 03:19 AM

Yes Harvey reading that thread was a great help in understanding the function of the starter and cruse circuts.
Trevor I still may have you guys confused but I "did find the cause of the voltage drop". My fix was not bringing new power froom the battery I fixed the voltage drop problem the only reason I needed the relay was because the neturel switch in the gear box could not handle the high amps on the starter circut.
The voltage drop that is due to the N/P switch failing over time so it doesn't let full power when it is under high current demand. There is nothing wrong witht the wiring its just the switchs.
Hope I explain it right. Bad luck you guys weren't there today it was great.
Tony

Trevor · #49 12-09-2006, 03:08 PM

Quote:

Originally Posted by Dessertrunner

Yes Harvey reading that thread was a great help in understanding the function of the starter and cruse circuts.
Trevor I still may have you guys confused but I "did find the cause of the voltage drop". My fix was not bringing new power froom the battery I fixed the voltage drop problem the only reason I needed the relay was because the neturel switch in the gear box could not handle the high amps on the starter circut.
The voltage drop that is due to the N/P switch failing over time so it doesn't let full power when it is under high current demand. There is nothing wrong witht the wiring its just the switchs.
Hope I explain it right. Bad luck you guys weren't there today it was great.
Tony

Thanks a lot Tony,

I gather that you have been able to positively isolate the problem, as being definitely confined to only the neutral switch in the transmission. This is very valuable information of special interest to those who have experienced similar faults and should be widely broadcast.