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"...failing on Hydrocarbons. Cuttoff is 0.5 failing at 0.9"
Posted by: UrS4boy (137) on 2014-10-21 15:38:53 In Reply to: Do they give you a slip of The readings? That could help. What does your HC # have to be? posted by Photongreen on 2014-10-21 14:16:35	Share \| Report

Thread:

Still failing aircare - pwadjo 2014-10-20 16:19:39 (299 views)
- The plot thickens - pwadjo 2014-10-21 03:10:06 (241 views)
  - Do they give you a slip of The readings? That could help. What does your HC # have to be? - Photongreen 2014-10-21 14:16:35 (184 views)
    - "...failing on Hydrocarbons. Cuttoff is 0.5 failing at 0.9" - UrS4boy 2014-10-21 15:38:53 (209 views)
      - Did the readings they gave you include O2 (oxygen)?   -  doron  2014-10-22 00:26:49 (204 views)
        
        Here is the full printout of the last run i had   -  pwadjo  2014-10-23 19:41:14 (191 views)
        
        The large HC peaks seem to occur mostly on decelerations (where the speed drops or stops increasing)   -  doron  2014-10-24 00:42:26 (185 views)
        
        Dirty throttlebody? Not closing quickly enough when the throttle is let off?   -  pwadjo  2014-10-24 02:12:13 (182 views)
        
        You could be getting some lean misfire after closing the throttle  -  doron  2014-10-25 14:19:39 (183 views)
        
        Also, check for any vacuum leaks that may be causing a lean mixture at low manifold pressures.   -  doron  2014-10-26 14:40:50 (164 views)
  - That is just the proverbial tip of the iceberg you have discovered so far because it is the low - scarman 2014-10-21 11:56:01 (240 views)
    - Tom is just being all doom and gloom. Just clean and solvent-out the MM hose and try AirCare - UrS4boy 2014-10-21 12:14:24 (220 views)
      - Can i run some seafoam from the MAF to turbo hose through the turbo to clean the  -  pwadjo  2014-10-21 13:30:54 (252 views)
        
        No sea foam experience here but I would NOT put it through the turbo. Like I said, just clean out  -  UrS4boy  2014-10-21 13:34:18 (207 views)
        
        Did that last night. Changed out the MM hose and redid aircare this morning. No change   -  pwadjo  2014-10-21 14:09:29 (207 views)
        
        OK. Is the issue at idle or during the "road" test? If at idle, blocking off the connection to the  -  UrS4boy  2014-10-21 14:17:17 (220 views)
        
        What if i allow the PCV to vent to atmosphere where it comes out of the valve cover on  -  pwadjo  2014-10-21 14:33:32 (212 views)
        
        Good thing they are no longer permitted to open the hoods for a visual. That might work as long  -  UrS4boy  2014-10-21 14:48:19 (216 views)
  - Years of accumulation (and neglect). It's from the Crankcase Ventilation System - UrS4boy 2014-10-21 11:04:35 (292 views)
- Fresh Oil Change? 87 octane gas (burns easier than 92 or 94)? - UrS4boy 2014-10-20 16:28:55 (256 views)
  - Oil is new. Think I might try the E85. There is a station selling it in West Van - pwadjo 2014-10-20 20:00:22 (206 views)
    - try no more than 40% concentration to pump gas - a4kquattro 2014-10-21 07:45:57 (256 views)
- add e85 to your tank - Hybrid_Hatch 2014-10-20 16:25:40 (237 views)

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