Sorry, I meant the ECU relay diode shown in the 88/89 Bentley diagram is not being used as for suppression. The most common FP and ECU relays are the Type 53 relays and these have a suppression resistor across the coil pins. Perhaps that is what you saw on the diagram on the relay itself? Mark
mark drillock wrote: > First of all, there are serious errors in that ECU/FP relay part of the > 88/89 Bentley Digifant diagrams, with connections shown wrong. Second, > the change to the more complex ECU relay with diode did not occur > exactly on the 88 model year break so your 88 may have come with the 87 > type FI harness. > > That diode is NOT being used as a suppressing diode. > > Mark > > neil n wrote: >> Hi all. >> >> Am finding a bit of poor work and mysterious things in my 1988 Westy >> engine bay. >> >> Situation: engine bay wiring harness likely replaced. ECU and fuel >> pump relays are both 4 pin Hella 53. Relay diagram shows what may be a >> suppressing diode in parallel at relay coil. >> |
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