| Professional Automotive Repair Technical Discussions for October 30, 2022 International Automotive Technicians' Network (iATN) - Members Only  | 
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Open Help Requests for All Makes and Models
	
| Help Request | Answers | |
| 2002 Jeep Liberty Limited 3.7L No Start VIN: 1J8GL58K52 Ok so I checked cam and crank sensors waveforms from back probing ecm and I have a beautiful signal from both sensors so I checked the waveform library and found a good waveform pattern cam and crank and it looks good timing right on the money even pulled ... Trouble codes: P1391 (Cam /crank sensor), P0340 (No cam sensor input)  | 				
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Fixes & Summaries for All Makes and Models
	
| Fix/Summary | Answers |