jt20, thanks for chipping in.

I do think you're talking about other cars. The 92 diesel has a very rudimentary code situation. It just blinks a light on the code reader and it's very obvious what the codes are. And I cleared them.

What I'm not clear about is whether there are other systems apart from the EDS that might be throwing codes and making the check engine light come on?

Paging Mr Dalton..... Mr Dalton....Bueller.....Anyone....

Thanks

Paul

__________________
1983 240D Silver/Blue "Sadie", unknown miles. 100k miles on WVO single tank, converted to 2 tank about 10k miles ago, FPHE, Injector Heaters, Aux Fuel pump. Alcohol/Water injection. Frantz oil bypass filter
1992 300D 2.5 Turbo Green/Tan "Jade" 267K miles Stock.
1992 300D 2.5 tan/tan "Rocky" on 2 tank WVO. Pressure actuated Turbo "rat's nest" surgery completed. 197k miles