08-27-2005, 09:15 PM
Re: 92 Landcruiser hard hot starting
TriStar Associates L.L.C.
Phone: 847-690-0910 Extension 17
"Stewart DIBBS" <firstname.lastname@example.org> wrote in message
> "Scott" <Toyota92Landcruiser@yahoo.com> wrote in message
>>I have a 1992 Landcruiser ...
>> I have pulled a plug and they are dry (no fuel on them) during these
>> episodes. However there also is no spark if I ground a plug and crank[/color]
> OK, no spark AND no fuel as well. I could understand just no fuel, as this
> suggests vapour lock or fuel filter problems. The engine runs hotter too.
> This suggests its running a bit lean. You need to investigate what
> controls both the injectors and spark. "ignition control module" ? If this
> is what generates the spark, its very likely NOT the problem as you've
> been advised.[/color]
Ignition igniters have been known to go bad but they do not fail
intermittently. They tend to just stop working and you get no spark.
What kind of spark plugs, ignition wires, cap, rotor, etc. are installed?
If it is aftermarket, that could be the problem. If they are OEM less than
60,000 miles old, then they are not likely to be the problem.
> Does the engine have a crank angle sensor of some sort, or a distributor?
> If the crank position is not being reported to the ECU, it will
> a) not cause the ignition control module to produce spark; and
> b) not fire the injectors because of a).[/color]
IIRC, it has a distributor.
> If the engine really is running lean, this suggests that another engine
> sensor or possibly an O2 sensor is malfunctioning.
> When it won't start, does the check engine light come on? Are you getting
> a error code from the ECU? Are you getting any error codes from the ECU
> that are not severe enough to turn on the check engine light ?
> Or it may just be a series of poor connections caused by age. Pull all the
> engine connectors you can see and give them squirt with WD40, then R/R the
> connections a few times. See if the problem goes away.
> Stewart DIBBS
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