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Discussion Starter · #1 · (Edited)
HELP! I 'm getting 3 codes: P0171,Bank 1 Lean; P0174, Bank 2 Lean; and P0455 Evap Emmission Gross Leak/No Flow. Yesterday I put 1 small can of R134a into the low side port near the fire wall, but am still blowing hot air -AND- I lost the cap for the high side port. Could this be causing the problem?
Also - A/C compressor is short cycling: "ON" for 1 second, "OFF" for 5 seconds. No guages (yet) to get readings for post. Coincidence...?
 

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The codes are for a bad evap system vacuum leak, maybe a bad vacuum line or fitting, ect.

On the A/C troubles, most autopars stores have a manafold gauge set for a refundable deposit, in their "Loan-A-Tool" program. Could be a charge, or maybe a limit switch problem.
 
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