FJ62 Dual battery, headlight harness and aux harness install fitting

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May 16, 2015
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Hi guys,

I just finished a dual battery install on my 1989 FJ62. I'm also installing the headlight ultimate harness and aux harness. I already did the headlight harness and next will be the aux harness.

I had to remove the silencer from the ASV (emission) and also unmount the ASV to be able to fit the overflow bottle (cf. pictures attached). How could I remount the ASV and also be able to use the silencer? Should I change to longer hoses? Should I get a different overflow bottle?

Thank you!

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@DoubleNickels It's not a silly question, I do film production and I run a lot of electrical stuff from inside the cab, so I need power for that! With this setup I'm not pulling too much on my starter battery. I'm using the National Luna Dual Battery system, it allows you for monitoring of both batteries from inside the cab. But as you can you can see it's taking up space!
 
don't see why longer hose for the silencer wouldn't work...how do you fair with those Optimas? I'm still burnt from the last one I bought...that was over 10 years ago...
 
Leave the silencer in your garage, in box. I found that additional noise is inaudible in a stock FJ62. It only silences noise when the air pump is in bypass mode.
 
Hey @Octave Zangs did you do a write up on your dude batt. install? I'll be installing the Ultimate Harness today on my '89 FJ62!
 
@LAMBCRUSHER It works for now, but didn't stress it that much yet! What kind of hoses should I get? You said for the silencer but can I change the length of the hoses that connect to the ASV too?

@SteveH The manual says that the ASV discharges air above 3,000 rpm and I think I've heard it, but need to do proper testing (cf. attached screenshot). But at least I need to remount the ASV, because now it just holds by the hoses. If you have any ideas!

@sbelinge Not yet I will try to do that soon, there are few tricks to know especially if you add the headlight harness and/or aux harness!

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swap motors to a chevy 350 and you'll have all sorts of room under the hood!

...sorry, i realize that's completely UNhelpful, just couldn't resist. :flipoff2:

& i have a headlight harness coming too! looking forward to that upgrade...
 
that stiff hose like toyota uses for the AIR injection? I do no know...you could bend some steel tubing and use short pieces of heater hose as couplers if nothing else.
 
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