'86 4kq back to no start, CIS help please.

Huw Powell human747 at attbi.com
Wed Dec 18 00:19:32 EST 2002

>   The current problem is a _total_ non-start; it won't even TRY to fire, not
> even a little bit.

I don't know where you are at on all the basics, tune up parts, etc.,
I'll leave that checklist up to you...

>   I've never done the t-belt, no idea when it was done either- is there a
> quick way to verify cam timing?

pull the oil filler cap, you can see the front two cam lobes.  At TDC
they will be pointing "up" at equal angles *relative to the plane of the
head*.  At this point you can either see the TDC mark on the flywheel is
lined up or the # piston will be at its max height.

You can turn the engine by hand with a big socket/extension/ratchet on
the crank bolt without removing anything.  Just remove something
critical, like the coil wire, so it doesn't somehow start for you anyway
while you are turning it!

>   What about the damp-ecu syndrome- is there a quick way to check for that?

feel around to the right of the glove box (USA/lhd cars)?  at worst,
remove glovebox and look at it.

> Will the normal start/cold enrichment checks verify ecu function adequately?

CPA current should be high, like 30-50 or so mA on cold start, that
ought to be partly convincing at least.

Huw Powell



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