Injectors not firing

[youngstr]

do you have anyone near you that has a hot air computer so they could swap in a known good one? it would be a good way to rule out the computer.

 

[youngstr]

Where did you apply power to the fuel pump from? did you use the green wire that is on the driverside? its mixed in with the wires for the powermaster brake sys, its for priming the fuel pump.....if you didn't use that what did you use?

 

[pisano]

No it's not priming I kno what u mean used to be like whaaaa whaaaaa then be quiet till u start it not anymore

 

[pisano]

Direct from the battery

 

[youngstr]

Direct from the battery

battery to the green primer wire or to the hot wire coming off the relay?

 

[pisano]

I've never seen another turbo Buick motor up close before and neither has anyone I kno, my brother in law has been a mechanic for 30 years and is like wtf a fuel injected regal lol

 

[youngstr]

battery to the green primer wire or to the hot wire coming off the relay?

Just saying i'm wondering if your wire from your relay to your pump is bad.

 

[pisano]

Na I got a hole in my trunk direct to the pump

 

[pisano]

If u mean one next to esc I changed it

 

[pisano]

Crazy right

 

[youngstr]

Crazy right

so you changed the relay thats there at the esc module , and you did a fresh wire back and took it down thru a hole in the trunk? so where did you apply power to? at the relay? put it this way, if you run a jumper to the pump and it works then it either has to be bad wire back to the pump, bad relay or ...... did you see if when you turn the key on if you get power on the wire that trips the relay on? if you don't get power to signal the relay to turn on then it might be your computer, or the fuse for the fuel pump circuit but you said the fuse was good so , ur computer....

 

[pisano]

Yes I was right ! Lol

 

[pisano]

I strongly believe the impound stole and swapped my ECM but how to prove that

 

[pisano]

This website has insane amounts of knowledge I learned a lot today just by reading

 

[youngstr]

Yes I was right ! Lol

looks that way, the way to test that theory is to hook power to the pole of that relay that trips the relay and turns on the fuel pump. if the relay is working right it will turn on the pump. and that would mean your computer is not sending a turnon voltage to the relay. you did make sure your battery is putting out more than 10.8 volts right? cause less than that would cause your ecm to not send the signal to your fuel pump. Just make sure your battery is good before pulling the trigger on a computer. I gotta jet, gotta go to buffalo tomorrow for work.

 

[pisano]

That's good to know il try that out before I do it

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