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Gary
Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 15723
Experience:  15 years GM master tech
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1990 ,1500 5.7 liter will not start replaced distributor,

Customer Question

1990 ,1500 5.7 liter will not start replaced distributor , wires & plugs, brain. check engine light is stobeinng (flashing very fast )
Submitted: 5 months ago.
Category: Chevy
Expert:  Gary replied 5 months ago.

the engine cranks over just fine ?

when cranking it over do you see good fuel pulsing out of the bottom of the fuel injectors ?

Customer: replied 5 months ago.
38; yes
Expert:  Gary replied 5 months ago.

is there spark at the spark plug wires where they connect to the spark plugs when cranking it over ?

new computer and the old chip was changed over to the new computer ?

Customer: replied 5 months ago.
38; yes
Expert:  Gary replied 5 months ago.

does this engine have compression of over 125 in all 8 cylinders ?

does it pop up through the intake ?

are you sure the timing is set correctly ?

Customer: replied 5 months ago.
stated when new computer was installed ran 4-5 min then died check engine lighted started flashing fast
Expert:  Gary replied 5 months ago.

will the old computer flash that light also ?

Customer: replied 5 months ago.
Sent old computer for core charge
Expert:  Gary replied 5 months ago.

that check engine light should only flash when the data link connector terminals are grounded to read codes

i would bring this computer back and get another one and see if it will run

sounds like this new computer being put in is when it started to flash that light since the computer controls that light the odds are the computer is defective

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