

| Subject: | Re: Bucking, hesitation between 1500 and 2500 RPM when hot |
| From: | Jerry |
| Date: | Wed, 11 Feb 2009 19:25:47 -0600 |
Since my Vanagon is an early 88 with wiring configuration of an 87, then the fuel injection wiring check of continuity between terminal #12 and terminal #86 of the fuel pump relay should indicate 3-5 ohms? Correct? As according to Bentley for an 87 Vanagon the fuel injection circuit includes terminal #86 of the fuel pump relay. My reading indicated 4 ohms resistance. Thanks a bunch! JB 88 GK Guido On 2/11/09 7:08 PM, "mdrillock" <mdrillock@COX.NET> wrote: > Ok, that is a very early 88, first couple weeks of model year > production. Not surprising that it has the 87 wiring setup if it does. > > Vanagon production was about 150,000 per year, most years, 10,000 > -15,000 per month. > > Mark > > Jerry wrote: >> 005235 >> >> >> On 2/11/09 6:05 PM, "mdrillock" <mdrillock@cox.net> wrote: >> >> >>> There are small or big mistakes in all of the sources of testing >>> procedures and wiring diagrams. The Pro Training manual is wrong in that >>> it treats all 2.1 years the same when they are not the same. >>> >>> Wherever that test for ECU pin 12 to FP relay pin 87 came from, it is >>> wrong to say Zero ohms expected. The actual expected reading depends on >>> the version of the 2.1 FI harness you have. If you look at the 1990 >>> Bentley diagram you will see an important change to this area in that >>> the injector power comes from the FP relay instead of the ECU relay. >>> This change actually may have occurred earlier than 1990 and my old 1988 >>> had the 1990 setup. It sounds like yours has the 87 type setup. What are >>> the last 6 digits of your vin? >>> >>> Mark >>> >>>
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