sv: sv: sv: sv: sv: sv: sv: 3.9 EFI uden Lamdasonde?? (30-07-2009 17:20:05)
Morten Christensen #8417, reg. njyl
Jamen nu giver det mere mening for mig, de var ikke helt dumme der over da de lavede den EFI motor.
Som i kan læse her under er det tydelig at man kan kører med og uden kat uden problemer.
At some point during 14CUX production, Rover apparently decided to eliminate the Tune Resistor. (According to Rover service literature, this started with VIN number LA451517.) It isn't clear from the literature whether any US-market 14CUX systems would be effected by having an incorrect or damaged tune resister. The example system we photographed and described for this article NEVER HAD A TUNE RESISTOR!
The following information on Tune Resistors is based on Rover service literature.
Visual inspection of wire color codes will allow you to quickly differentiate between resistors.
White 3900 Ohms USA and European vehicles with catalytic converters
Green 470 Ohms UK and European vehicles without catalytic converters
Yellow 910 Ohms Saudi vehicles (without catalytic converters.)
Red 180 Ohms Australia and "the rest of the world."
Note: all four types of Rover Tune Resistors were rated for 0.5 Watts.
When fitted, the Tune Resistor was connected to the ECU through terminal position 5, and it was also connected to terminal position 27 through a splice. If you wish to check the resistor, first disconnect power to the system, second disconnect the EFI Cable Harness Assembly from the ECU, and finally simply measure resistance (using an Ohmmeter) from pin 5 to pin 27 on the main ECU connector. (Resistance isn't polarity dependent.)