ns87 Posted May 15, 2007 Report Share Posted May 15, 2007 I replaced my leaking vac line to HVAC and have air vents/cruise working again : GOOD I saw the one that ran from the FPR to the MAP sensor was cracked, so I decided to replace that one too. I pulled out the brittle plastic line under the plenum (going to MAP), and ran a rubber one above the plenum (not touching it). It idled around 2000, and gave me Service Engine Soon. I realized the hard line ran to this weird thing that redirected the line to the map sensor behind the engine. Bypassing this plastic redirector makes the sensor is going crazy? Its in a really hard to get to spot. The car runs right kinda alright with a very high idle. I'm going out to fiddle with it. I appreciate fast responses since I need to take a long trip in two days. On a side note, before I messed with this second line, my car ran PERFECTLY Thank you Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted May 15, 2007 Report Share Posted May 15, 2007 try an idle re-learn Quote Link to comment Share on other sites More sharing options...
ns87 Posted May 15, 2007 Author Report Share Posted May 15, 2007 no luck on idle relearn, but got a code 33 doing it! Trouble Code 33 indicates that the Manifold Absolute Pressure (MAP) sensor is detecting unusually low vacuum in the manifold Possible causes include: 1. Faulty MAP-to-ECM connection 2. Plugged or leaking sensor vacuum hose 3. Defective MAP sensor 4. Defective ECM 1) I didn't unplug the sensor 2) ? I guess...it was leaking before I replaced the line 3) I doubt it 4) No thanks, replaced in past. Twice. Engine is really hot. Tomorrow I guess I'll see if my new line is leaking Quote Link to comment Share on other sites More sharing options...
ns87 Posted May 21, 2007 Author Report Share Posted May 21, 2007 just to update: MAP sensor was toast....It didn't know what to do with a non leaky vacuum line. Idle relearn did nothing, replaced sensor and then idle relearned. Its fine now Quote Link to comment Share on other sites More sharing options...
rockfangd Posted May 22, 2007 Report Share Posted May 22, 2007 very nice. ++ Quote Link to comment Share on other sites More sharing options...
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