Help 06 expy multiple fuses no power

[stamp11127]

You need an oscilloscope - most diyers don't have it

 

[1955moose]

Too bad Sun instruments doesn't make a small hand help cheap version for these days. I remember the 6 foot tall behometh we had in our shops in the 70-90's. I guess these days, you need to go with a Snap on Vantage or equivalent, to scope an engine. Fmp, buy a fuel pump driver module like stamp said. Good chance at this point it's your problem. They corrode, and malfunction due to weather exposure. Who'd think, put an electrical item near the spare tire that controls fuel pump operation? Thank God it was only 05-06 for use!

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[stamp11127]

Things have changed Moose, check out the Picoscope

https://www.picoauto.com/products/automotive-oscilloscope-kit/picoscope-kits-hardware

 

[1955moose]

Not bad for around $900.00. Most scanners with scope capability are usually over $3,000 these days. Do you have one?

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[stamp11127]

Nope, outside of my budget. The semi scanner we use here was well north of $3000 - and it doesn't have the scope function.

 

[Don Hall]

It just cranks but it does not turn over

If it cranks, it is turning over........"crank" and" turn over" are synonymous.

I think you mean it cranks, but does not start (run).

 

[FMP Mtz]

Do you have the 3rd page to see where 6 and 1 go to please

 

[FMP Mtz]

Looks like the fuel pump driver module went south. To verify you would need to scope the signal/voltage to the pump or toss a new module in and see if it starts. Rock Auto has two brands of them for less than $75.

Do you have the 3rd page to see where pin 6 and 10 go to please (scope 11127) thank you

 

[FMP Mtz]

If it cranks, it is turning over........"crank" and" turn over" are synonymous.

I think you mean it cranks, but does not start (run).

Correct sorry for the error

 

[stamp11127]

Rest of Engine Performance diagrams

 

[FMP Mtz]

Thank you

 

[FMP Mtz]

An update from my situation. found a mechanic that turned it on for me checked all my wiring everything was good as far as wiring changed the fuel pump module and also took out pump to replace a defective hose on the new pump Anyway. Replaced the fuel tank pressure sensor so it’s food to go fires right up except when I tried filling the gas tank the pump keeps stopping so it takes me literally 30 mins to pump for gas smh any thoughts of what the “mechanic “ could have done wrong as in putting back the tank or connecting a hose wrong? I tried looking for a pinched hose but the two rear hoses plugging into tank and the one in the front of the tank seemed connected good without pinched or twists I already contacted the mechanic but he said sometime next week if anyone has anything please share and thanks in advance