1991 Toyota Corolla Won't start

1991 Toyota Corolla Won't start

You got fuel pressure but is it the correct fuel pressure? Get the readings and get back.

yes 44lbs

This readingis is this with or w/o vacuum to the fuel pressure regulator?

I don't know. took reading just after Filter. If the pressure was good what next. I am pressed for time and Im limited in my mechanic skills and haven't got a lot of tools. If the pressure regulator is likely the problem, where is it whats it look like, and how do I check its Vaccume.

The pressure regulator should be on one end of the fuel rail with a vacuum hose attached to it

I found it. No fuel in the Vaccume hose connected to it, so I guess the diaphram in the regulator is good. I understand now. I need to check the pressure while turning the engine over rather than jumping B+ to FP.

Do you have vacuum on the vacuum hose??

It feels like there is some vacuum but I don't have a vacuum guage. My finger can slightly feel suction. How much suction should it put on my finger?

Dunno about the finger method-vacuum gauge is the way to go about 18-21inch will do it Or you can try this little trick of mine Tee-in another vacuum hose long enough to reach the EGR valve disconnect its vac hose and hook up the vacuum hose did it cause the engine to run rough if so its good enough for the regulator.

If car sat for 4 years without a fuel stabilizer in tank, you most likely have a significant varnish build up.

Get a noid light and make sure injectors are firing, spark should be blue snapping spark, anything else is considered no spark.

There is a special tool set to check fuel pressure at rail. You remove the cold start valve at the rail and screw in adapter, then hook up to mechanical gauge.

Also remove plugs and check compression.

If weak spark then most likely and ignitor is bad, on this engine (4AFE), it is actually cheaper to buy a remanufactures dist, rather than the ignitor (ign. module) itself.

You can also get a used dist. from a junkyard. Look for one from a 90-92 Toyota Corolla or Geo Prizm.
If you find a car listed above, remove and buy the two fuse/relay boxes near the left front strut. They contain fuses, but also very expensive relays that you may need.

I got the vacuum guage but the car won't start. How am I suppose to get a vacuum reading? I tried to get a reading while I was turning the engine over but the needle just shook between 4 and 8 inches.

You are going to have to check fuel pressure and injector pulse.

This is most likely a fuel problem because it sat for so long. Gasoline will decompose within 60-90 days, after 4 years it has most likely clogged the fuel system to the point it is not getting any fuel.

Try a local "U Pull It" and get a fuel rail and dist.

Toyota made hundreds of thousands of these engines, so they should be easy to find.