6 replies to this topic

[radgator1]

As per my previous thread I'm in the process of changing the engine from SPi to Carb so figuring out what wires/circuits can be removed and which ones I need to retain. I came accross this one on a schematic but have no idea what it is or what it does. Anyone able to clue me in?

Thanks

Edited by radgator1, 02 June 2010 - 09:56 PM.

[82hle]

As per my previous thread I'm in the process of changing the engine from SPi to Carb so figuring out what wires/circuits can be removed and which ones I need to retain. I came accross this one on a schematic but have no idea what it is or what it does. Anyone able to clue me in?

Thanks

It stops you starting the car with it in drive. It will only start in Neutral (or Park maybe)
Mart.

[MRA]

Yes and Park if you have it

THis is NOT part of the SPi system, however if you where changing from manual to auto then you would simply join these two wires together to bypass the inhibitor...... please do NOT do this to an Auto as it is dangerous, it is there for your's and other road (and path) user's safety

[radgator1]

Yes and Park if you have it

THis is NOT part of the SPi system, however if you where changing from manual to auto then you would simply join these two wires together to bypass the inhibitor...... please do NOT do this to an Auto as it is dangerous, it is there for your's and other road (and path) user's safety

Thanks, so now I know what it does but can't say I totally understand your reply. I'm not changing form a manual to auto, staying manual. My schematic of the MEMS shows this wire in plug number 14 so if it is there it is coming out unless there is some reason to keep it.

Thanks

[MRA]

It's fairly critical for safety.

The circuit in question is the starter motor solenoid energiser circuit, so is also part of the ECU / security system............. normally this is the wire that comes off the ignition key and is the one that erergises when you turn the key to the last position, so you will need it for your system to work correctly.

Sorry if my last answer confused you....

[xrocketengineer]

Hi radgator1,
If you are planning on keeping the aircon unit, be aware that there are certain functions controlled and monitored by the ECU like the condenser fan and the compressor clutch. I have not found wiring diagrams for the SPI, however there are for the Japanese SPI/MPI for 1997 in page 24 here:

http://www.theminifo...x...st&id=68240

I have confirmed on mine (Cooper 1994) that I can operate the condenser fan using the SP ACR connected to the diagnostic port.

Ivan

[radgator1]

Hi radgator1,
If you are planning on keeping the aircon unit, be aware that there are certain functions controlled and monitored by the ECU like the condenser fan and the compressor clutch. I have not found wiring diagrams for the SPI, however there are for the Japanese SPI/MPI for 1997 in page 24 here:

http://www.theminifo...x...st&id=68240

I have confirmed on mine (Cooper 1994) that I can operate the condenser fan using the SP ACR connected to the diagnostic port.

Ivan

Thanks, yes, I definitely plan to keep my AC. I'll probably take my car to a AC shop once I get the new engine in and the car running and get them to oil and charge it and correct any issues with the circuit if needed. I have those circuit diagrams. What's interesting is the condensor fan circuit doesn't look like it goes throuhg the ECU, just the dual pressure switch and the compressor clutch. I know you can add AC to pre-FI mini's and the switches and relays themselves should serve the function of turning on and off the compressor, fan, etc so I doubt there is much control of the system done by the ecu.