"Elle" > wrote in
ink.net:

> "TeGGeR®" > wrote
>> After much investigation, it looks like it's the injectors
>> themselves
>> that's causing the problem. I have to find a place that
>> can do an "injector
>> pressure-drop test", which will tell me whether the
>> injectors are all
>> firing the same or not. If one is out of sync with the
>> others, they'll have
>> to come out for bench testing.
>
> Tegger, this testing sounds like it's going to be expensive.
> Why not just replace the injectors? Seems like a remanned
> set of four may be had for under $200 U.S.



Testing might not be that expensive, I don't know. First I have to phone
around for somebody who even does that kind of thing.



>
> What's your overall plan of attack here, assuming you go
> ahead with testing and the tests indicate ___ is bad?


1) Cooling system service
2) Check TPS again
3) Injector testing

So far NOTHING's tested bad. Comboverfish has objections to the factory-
specified test methods, and he's pretty knowledgeable, so I'll recheck
stuff his way just to be sure.

This weekend I'm doing my yearly cooling system sereice, and will replace
the thermostat and temp sender. Just in case.

Just today I learned that my fuel pressure is absolutely perfect: 40 psi.
The acceptable range is 37-44 psi. So that's one more thing that doesn't
seem to be wrong.

I'll check the TPS again (properly this time; Comboverfish was right about
the wrong wire I was checking). Frankly I'm not anticipating that it will
be found to be bad. The symptoms are wrong for a bad TPS anyway.

If the TPS is good, it will be time to investigate the injectors, as that
will be the last thing left. Personally, I have a hunch it will turn out to
be a weak coil on one of the injectors.

Hmm... I never checked ignition timing. It was spot-on last time I looked.
I'll check that too just to be sure.



>
> Obviously I'm not an expert. I am following the thread on
> this at rec.autos.tech , where I don't see anyone suggesting
> similar, so I must be missing something. Just curious about
> all this and trying to learn.


So am I. It's not like an old non-emissions carburetor and Kettering
distributor, which was pretty simple to figure out.

I won't post back to rec.autos.tech until I check the TPS peoperly.



--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/