Chevy & GMC Vans

Kidhauler wrote:If your computer is not seeing any oil pressure it will not turn the fuel on. Check your oil pressure sender unit. It is on the back of the engine just below the distributor.

Oil pressure is good.

If your problem is a no start due to no fuel injector pulse, here is a simple test to do. This tests the ignition module which is in the distributor - '94 & prior vans.

Test:
Disconnect the 4 wire connector from the distributor.
Turn on the ignition.
Connect the aligator clip of a test light (not an LED test light) to battery positive.
Momentarily touch the tip of the test light probe to the purple/white wire in the disconnected 4 wire connector.

Result:
This will simulate a trigger/pulse.
The ECM should turn on the fuel pump for 2 seconds & pulse the injectors.

If this happens, your ECM is functioning ok & your ignition module/pick up coil is faulty.

is that for 93 and older or 94 and older i have a 94 astro

v8famvan wrote:This tests the ignition module which is in the distributor - '94 & prior vans.

He says it is for 94 and older so your 94 should be included in this test.

AWESOME info James!

Jbird, do you have the Z or W engine? If you have the W, I think you will need a higher fuel pressure gage than the one you posted.
Until I saw the year of your van, I was laboring under the assumption you had something closer to an 89 TBI system.