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what make a make a vehicle seen like it straving for gas…

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what make a make a...
what make a make a vehicle seen like it straving for gas
Submitted: 8 years ago.Category: Chevy
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Answered in 4 minutes by:
6/10/2010
Chevy Mechanic: Paul M ASE Master, ASE Master Tech replied 8 years ago
Paul M ASE Master
Paul M ASE Master, ASE Master Tech
Category: Chevy
Satisfied Customers: 4,684
Experience: ASE Master Tech 20+ Years
Verified

Hello and thank you for using Just Answer

 

if you are continuing to get MAF codes you need to check the wiring to the sensor

 

particularly the power and ground

 

unplug the MAF and see if it has power if so you need to check the wiring harness

 

do you have the engine code that is showing up?

 

Paul

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Customer reply replied 8 years ago
PO102
Chevy Mechanic: Paul M ASE Master, ASE Master Tech replied 8 years ago

I want you to check for battery voltage on the pink wire at the sensor

 

and ground on the black wire

 

do you have a meter?

 

do this with the key on

 

one lead to black and the other to the pink is battery voltage present?

 

Paul

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Customer reply replied 8 years ago
what meter do i need?
Chevy Mechanic: Paul M ASE Master, ASE Master Tech replied 8 years ago

it would be best to use a DVOM (Digital Volt Ohm Meter) you can pick one up at radio shack for around 20 dollars

 

you can check it with a test light but that will not show actuall voltage

 

Paul

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Customer reply replied 8 years ago
the plug with three wires going to the MAF 12.52-53 the plug with two wires 4.99
Chevy Mechanic: Paul M ASE Master, ASE Master Tech replied 8 years ago

the 3 wire plug

 

with meter between the PINK and the BLACK/WHITE wire

 

is it 12volts?

 

Paul

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Customer reply replied 8 years ago
Yes
Chevy Mechanic: Paul M ASE Master, ASE Master Tech replied 8 years ago

ok so voltage is good to the MAF

 

do the pins look good and tight? if they are stretched or spread at all they may not be making a good connection at the sensor

 

there is also information that the MAP sensor can cause this code

 

I am going to attach a test for the MAP / MAF sensors I want you to perform

 

also inspect the MAP sensor connector for any damage. there is also a vacuum source under the MAP check that is tight

 

click here for the testing information (Montanta is same engine package)

 

click here for the MAP location

 

let me know what you find and if you need more help

 

thanks

 

Paul

 

 

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Customer reply replied 8 years ago
engine runs good on the MAP and MAF. when i plug the MAF backup it starts
Chevy Mechanic: Paul M ASE Master, ASE Master Tech replied 8 years ago

when you plug in the MAF it starts to run bad?

 

so it runs good with MAF unplugged?

 

Paul

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