Question about 1992 Saturn SL1
I have a 92 Saturn SL1 with a no spark. While we were working on it we found a wire coming from (passager side) the harness with 2 blue wires (one of them being broken) and a oval red w/ a blue band around it plug plus there is a P?? 16 on it, we can't find were it came unplug from. We have looked around the rear of the engine to the driver side and still no luck. Does anyone have any ideal were it plug into?
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Posted on Jan 02, 2017
It was the coolant temperature sensor. It was telling the car that the coolant was always cold, therefore when starting a warm engine it was being flooded. $$$
Posted on Jan 16, 2009
For old models, Saturn/GM also used the same material
fiberglass gasket in your model, you almost certainly have a leak from
a crumpled, sucked-in gasket as I suffered (and many others). I would
say going to Saturn dealership to make repairs is probably not good
idea if they are going to put in the same GM intake gasket part. Maybe
possible to specify Felpro gasket with whatever shop you go to if you
don't do the repair yourself. I would not go too long with your car in
that condition as there is localized leaning at your cyl-3, that could
cause a burnt exhaust valve there.
The exhaust is extra hot venting out that cylinder. P0303 is misfire at cyl-3. Mine was P0301 (cyl-1). You may get P0507 once in a while when PCM fails to control the fast idle caused by the leak under certain conditions. Most of the time, it is very slow idle caused by 3 cylinders running. You run smoother in cold idle because the IAC opens up to increase idle and end up lowering the manifold vacuum, so the reduced vacuum causes less leaking at the failing intake manifold gasket.
I'd say try cleaning everything with your ignition before replacement; Idle problems could be caused by engine coolant sensor (ECTS). Are you sure it was changed? Did they put on a new wire connector along with it?
Posted on Dec 29, 2009
I have the same problem. Apparently they have a problem with the intake gasket leaking at cylinder #1. Warm the engine, spray some throttle body cleaner around the gasket area where the intake bolts to the engine (around/under the power steering pump) and if the idle changes or smoothes out, then you found your leak. I did this and found it.
Before changing the coil, test them using an ohm meter. They should have about 12000 ohms resistance.
Posted on Mar 09, 2010
Call junkyards, look on ebay or craigslist, and find out. You are obviously going to need a used part. Having located a used part, find a mechanic to find out how much the labor will be.
Posted on Apr 26, 2010
On the 90s S models there were two screws holding the rails in front and two in back. remove those bolts, disconnect the battery and then the seat belt light wiring plug and the thing should come right out.
Posted on Nov 25, 2010
Testimonial: "Thanks! I had not considered having to disconnect the battery before unplugging the wire under the seat. Very insightful and helpful!"
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