My apologies Steve. The info I supplied from simply looking at the Bentley diagram was misleading. Thanks for the correction David! I assumed the white wire from ECU 12 to fuel injectors only supplied a switced ground. I think I understand what you're saying; this wire switches from + to - (engine running) to open/close the fuel injectors. Neil.
On 12/7/13, David Beierl <dbeierl@attglobal.net> wrote:
> With the system ready but idle you should have B+ on *both* sides of > the injector plug. If you don't then there's bad contact at the plug > (or an open injector coil, of course). When it runs one side pulses > down toward ground for the duration of the injector opening. If your > Fluke can measure duty cycle you can see that happening. > > All the injectors are switched by the same transistor, so if you're > getting pulses on some lines and not others it's a wiring issue. > > Yrs, > d >
-- Neil n Blog: tubaneil.blogspot.ca '88 Westy http://tinyurl.com/c8rlw6p '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/ Vanagon VAG *Gas* inline-VR Engine Swap Group: |
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