wowchad

I have a '97 Baja Outlaw w/ a 454 that I lost oil pressure on.

I fix it and now I have 40psi, however once I come on plane it shuts down.

I have ran it at idle for a least 30 min. however under load I have a problem.

Any thoughts?

Also why are there 2 coolant sensors and 2 oil pressure sensors? - (suspect for problem)
I broke one of my coolant ones while changing manifolds and it didn't seem to matter at all.

I've put on allot of hours with just the one.

JaayTeee

The 2 wire coolant sensor is for the
ECM, the oil pressure switch is for the
ECM, the ECM controls the alarm circuit,
as well as shut down.
The other senders are for the gauges.

Is the alarm going off when it shuts down ?

(I am assuming you have an EFI engine,
carbed engine, all that can be "shut down"
is the spark advance curve, due to the
knock sensor being tripped, thunderbolt V
ignition. )

wowchad

We had a faulty alarm, and a bad sensor!!!!!!!!!

The oil press. sender was the bad one, I found out you can just disconnect it and run, in case it were to go bad on the water.

Maybe I'll make my poker run in my own boat after all

jt29 I have a carburated engine, so I don't think there is an ECM, is there?

Thanks for the help

Dennis Moore

A carbureted engine will have a sensor for the oil pressure alarm and the oil pressure gauge and a water temp sensor for the high temp alarm and the water temp gauge. None of these sensors will shut down the engine. Cutting out at high rpm is probably a clogged fuel filter. Check the filter inside the carburetor (on the Quadrajet).
Dennis Moore

seahawk

what was your oil pressure problem

wowchad

seahawk see post "compression test"

If that sender will not shut down my engine I don't know what the hell my problem is.
I can idle no problem, once through the no wake zone I throttle up and just as I come onto plane it shut down and wouldn't re-start.
I can see fuel down the Holly, W.T.F. is going on!?!

Once I get it back to the shop it fires up no problem!!!!!!

JaayTeee

Have you checked for spark after it dies ?

wowchad

Were going to disconnect the bad sender this afternoon and give her hell. If it dies I'll check spark.

We had a problem with vapor lock in the past, but it wouldn't happen this quick.

I'm supposed to be heading for the Mississippi right about now but.....

Looks like it might be a jetboat river trip if we don't figure this out by tonight

JaayTeee

Like Dennis mentioned, there's no
sensor on a carbed engine that's
going to "shut it down".

It won't start right back up after
it "shuts down" ?


jt

wowchad

NOPE

We are going to check spark on the water once it shuts down, if that's not it I don't know what it could be.
Like I said earlier I've had a problem with vapor lock but that was taken care of.

I will check my fuel filter but we had gas when pumping, maybe not enough to sustain higher rpm's?

I'll let you know tuesday when I get back to work.