Thanks Scott. For sure am putting ECM under rear seat. Already have a hole leftover from the gas heater for wires to run through. I didn't know Vanagon (post '86) had *heated* O2 sensors. I guess I could run wires forward for relays, but they should be fine in the engine bay. If I had any doubts about crap getting in the relay box, I sure wouldn't put them there! --- :^) Neil. On Tue, Apr 8, 2008 at 1:34 PM, Scott Daniel - Shazam <scottdaniel@turbovans.com> wrote: > Ok, that makes sense. > In 86 and up vanagons )2 heat is supplied by the same relay that powers up > the ECU I believe. Easy to check on a Bentley diagram. > But having a separate relay for that function is fine. > > I have the biggest firmest rule in the world about not letting ANYTHING go > until the new engine conversion is perfectly working and all sorted out, > like a few months worth. > I use many of the stock waterboxcer parts on Subaru conversions, engine > upgrades from 1.9 to 2.1 etc. > Sometimes I get 6 to 8 parts reused in the new engine conversion. > > Sure, you can stuff your relays in the black junction box. > > I also........in Subaru conversions, I put the two relays under the back > seat next to the ECU. That works quite nicely. Keeps the engine compartment > clean looking, and puts the relays where no road junk or moisture can get to > them. I wouldn't consider putting the ECU anywhere other than under the rear > seat btw. > Scott > > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > neil N > > Sent: Tuesday, April 08, 2008 1:03 PM > To: vanagon@GERRY.VANAGON.COM > > > Subject: Re: 4 pin fuel pump relay(s) question. > > Hi Scott. > > 3rd relay is for the HO2S (heated O2 sensor) > > The Jetta uses a fancy schmansy O2 sensor with a heater element. > > Thanks for the confirmation and tips. > > Unfortunately I didn't keep the "high voltage" box from donor. Sold it > with engine. Luckily I had the sense to keep the black junction box > from WBX donor. It looks like it seals properly. Should suffice for > relays. > > Neil. > |
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