8 replies to this topic

[homerball]

Hi all

 

Is it possible to use the MFU and TPS from the MPI models on a 93 SPI Cooper? After a long search I have been unable to find either part for the SPI.

 

The issues I have are erratic idle (Not vacuum pipes, lambda, CTS or inlet air temp as all are new) and also the fuel pump not starting on IGN 2 (Fuel pump is fine). The car will turn over fine but just wont start as no fuel.

 

Any other suggestions are welcome!

 

Many Thanks

Homer

[RooBoonix]

The fuel pump not starting... have you checked the inertia switch on the bulkhead to make sure it's not tripped? Just press down on the rubber cap to make sure.

[ukcooper]

erratic idle

 

​been messing with the idle screw on the carb/injection unit???

 

if so needs setting up with diagnostic machine ect to set the stepper motor cant be done by hand 

[homerball]

Inertia switch is fine and I haven't personally fiddled with the idle screw. If the idle screw has been fiddled with would that cause an erratic idle?

[ukcooper]

yes

[homerball]

So after testing I have found the fuel pump was being powered from the fuse box on IGN 2 (Must been a mod from previous owner). The actual fault is the connector to the inertia switch, are those possible to get hold off?

[RooBoonix]

Send a message to WiredbyWilson on here, he might be able to point you in the right direction.

[homerball]

Well I believe this is the connector http://www.dellorto....-connector-kit/

 

Though referring to my other question can the MPI throttle position switch be used on the SPI? 

[FlyingScot]

MFU and TPS are different between SPi and MPi.

http://minispares.co.../YWB10022.aspx?

TPS more tricky as everyone seems out of stock.

FS