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I contacted you yesterday about the p1351 code and I did all…

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Hello I contacted you yesterday...
Hello I contacted you yesterday about the p1351 code and I did all my checks and PCM signal was 1.2 volts ac but other test said to test ICM B wire with a light tester and if it blinked the the ICM was bad. Which is it or if this was inaccurate information. Second question could the ECM be bad because I have spark from coil, fuel, proper 1-4volts a/c signal on B wire but still getting p1351code. Also if I order a ecm what information do I need..
Submitted: 7 months ago.Category: Chevy
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Answered in 2 hours by:
12/1/2017
Chevy Mechanic: Gary, Chevy Technician replied 7 months ago
Gary
Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 18,018
Experience: 15 years GM master tech
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Welcome! My name is ***** ***** I will do my best to assist you with this problem.Ask me about added features such as phone contact anytime if you wish !

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Chevy Mechanic: Gary, Chevy Technician replied 7 months ago

how does it run besides that code being set ?

the white wire at the module cranking it over the white should show 1 to 4 volts ac scale

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