Emission Control Computer FJ60

Butt Ugly Chuck

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Where is the Emission Control Computer on my 60? Do these go bad and are they spendy to replace?

Background: I've been chasing EGR symptoms for too long now (bucking under acceleration). My EGR, Modulator, and VSV for the EGR system all check out OK per the FSM. But my rig still bucks unless I bypass the EGR. One test I do fail is at the bottom of page 3-16 in the FSM. If I increase RPM to over 1,500 and blow into port F, I don't get air from port E. Could this indicate faulty Emission Control Computer? Would it cause bucking?

What say ye Cruiser sages?
Thanks,
Butt

P.S. Non-tech: Seems like I've been averaging about $50/month in Cruiser cash and maybe two hrs/month wrench time. Progress is SLOW:bang:.
 
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Depending on the year, have you tried the fuel cut solenoid , the VSV's and cracks in hoses and reseated the electrical connections.

Yes they do go bad, I replaced one.

Behind one of the front kick panels, mine said 2F emissions right on it.
 

2mbb

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Mine (1985 FJ60) is behind the drivers side kick panel. It's inside a black plastic box that does say 2F emissions. Here's a picture of what's inside. Using the term "computer" is a bit of a stretch. Do a search. There are some threads about folks that have repaired theirs, but how to troubleshoot what's wrong is a little bit beyond me.
emissions computer.JPG
 
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I had a bad run that I was able to spot, after awhile I got tried of fixing it.

Sold my 81 but still have a spare 2F Emissions "computer" at home.
 

Butt Ugly Chuck

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Depending on the year, have you tried the fuel cut solenoid...
My searches of the fuel cut solonoid turn up symptoms different than mine

....the VSV's....
Currently running a replacement I got from CruiserParts.net, and it tests OK per the FSM

....cracks in hoses....
Running all new vacuum hoses from McMaster Carr

....and reseated the electrical connections....
Do you mean at the computer? I'll give that a go when I get a chance.

Behind one of the front kick panels, mine said 2F emissions right on it.
Thanks! I was at a loss where to look.

Sold my 81 but still have a spare 2F Emissions "computer" at home.
If you're willing to part with it I might be interested....

Thanks for the pic 2mbb!
:cheers:

Butt
 

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