1993 Pontiac Trans Sport 3.8

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02-04-2018, 04:42 PM

#21

Mike

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Quote:

Originally Posted by Mike

What is the fuel pressure?

Quote:

Originally Posted by Tech II

as Mike asked, we asked for fuel pressure a long time ago(using a gage)....

Also, does your ignition key have a black resistor on the shaft?

Quote:

Originally Posted by Mike

Just because its new, doesn't mean it works.

We need to know your ACTUAL fuel pressure given by a fuel pressure gauge attached to the fuel rail. This has been asked for several times. Autozone will rent them out cheaply.

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02-09-2018, 11:13 AM

#22

TS-3.8-L27

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Fuel Pressure is 46psi

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02-09-2018, 06:07 PM

#23

CathedralCub

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CathedralCub is a splendid one to behold

Going through the thread, seems like injectors aren't firing. Either way a couple of missing pieces:

Quote:

Originally Posted by Tech II

Also, does your ignition key have a black resistor on the shaft?

Haven't seen this answered yet . . .

Quote:

Originally Posted by TS-3.8-L27

The code 26 was tried on all controlled parts and we have found a fault in the ground line of the solenoid valve for gasoline vapor extraction, this has been fixed and the error has come back again.

Just making sure I have this right: You had a code 26, then fixed the ground line, then the code 26 came back again?

Quote:

Originally Posted by TS-3.8-L27

We measured with a high-quality multimeter whether the injectors are controlled, but nothing happens.

Measured at the injectors or elsewhere?

"nothing happens" would seem to indicate no injector pulse signal . . . ?

Last edited by CathedralCub; 02-09-2018 at 06:08 PM. Reason: Removed an undesired "[b]"

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02-09-2018, 10:05 PM

#24

Mike

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You can't measure injector pulse because the elcheapo multimeters are not fast enough.

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02-09-2018, 11:09 PM

#25

rjolly87

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As I understand it, an easy way to check for injector pulse would be to bend the wires back on a 194 bulb (168 works too), unplug the injector, and then plug the bulb in to it. If the bulb blinks, then you are getting injector pulse.

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02-10-2018, 01:53 AM

#26

TS-3.8-L27

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I have no contact in the key, the Injectors I have measured directly against them and there is always the error 26

After subtracting all Quad A driver components, he still did not start, the strange thing is what I noticed, when I turn it off and immediately try to start it jumps on, but if I wait 2-3min he does not start anymore.

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