I have a 1500 chev truck.With a 305 fuel in jection throttle body.The truck seems to be geting some fule and i took plug out and i see it firing. but will not run. it seems like it wants to but wont .Could the module be weak.And if i keep turning the truck over it smells like it flooded.I am scratching my head.??????

It is flooding.
Intake air temp sensor? Open circuit on that is -40 degrees, that will flood one out.
Low fuel pressure.

Also, if you have a coil wire, pull it out enough to create an air gap, or if it's old school HEI, lift all the plug wires up off the cap to create an air gap. That will increase the secondary voltage enough to fire fouled plugs.


If you depress the accelerator to the floor while cranking, it cuts the fuel to 20%, "clear flood" mode.
See if that fires it up.

it is not a HEI.and if i go to the floor it does not start.but i smell gas.And new plugs.It was runing one day,and justs cut off/

The small distributor TBI models are notorious for cap / rotor failure, and oil invasion into the distributor.

Verify you have spark enough from the coil to jump a big gap.

Watch the injector spray pattern while cranking.

I had a friend watch the spray pattern and he said that he saw 1 injector spay at a time. will look at cap and rotor and module..

If the coil is mounted on side of intake saw lost of problems with the primary wiring to coils getting chased and turning green reducing voltage also tbi base gaskets getting sucked in causing huge vacuum leaks

Ideally get someone with scanner to look at data or get multi meter and start checking voltages at sensors if need be

Also as said above check cap top make sure carbon button in center isn’t broken seen that often too

What year? It may help diagnose the issue.

1988 1500 chev truck 305 small block

If you pull the distance cap and find a bunch of corrosion in it make sure the small screen is clear

quote:

If you pull the distance cap and find a bunch of corrosion in it make sure the small screen is clear

small screen ????

This is my favorite

quote:

Originally posted by rusty:

quote:

If you pull the distance cap and find a bunch of corrosion in it make sure the small screen is clear

small screen ????

Base of distributor has a small screen, it's common for it to clog with corrosion.

quote:

Originally posted by Eman:

quote:

Originally posted by rusty:

quote:

If you pull the distance cap and find a bunch of corrosion in it make sure the small screen is clear

small screen ????

Base of distributor has a small screen, it's common for it to clog with corrosion.

That's an Ozone relief vent.

Goob what brand is that like that way better than the one with clip solid mounted although maybe my clip is going to become connected to a wire

quote:

Originally posted by Top355x:
Goob what brand is that like that way better than the one with clip solid mounted although maybe my clip is going to become connected to a wire

Not sure, I've had it since Christ was a Corporal.
Could be Lisle, or Matco / Mac / Snap-On.

I found this probable Chinese deal on Amazon....
https://www.amazon.com/Deal%E3...d_i=B06X9RC3PF&psc=1

Thanks will see

quote:

quote:
Originally posted by Eman:
quote:
Originally posted by rusty:
quote:
If you pull the distance cap and find a bunch of corrosion in it make sure the small screen is clear

small screen ????

Base of distributor has a small screen, it's common for it to clog with corrosion.


That's an Ozone relief vent.

what issues could happen if stopped up, and is it supposed to be green lol