Not your average PO505!
11-02-2009, 06:23 PM
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Not your average PO505!
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Alright heres the story, 2000 Civic Si with OBD2 JDM GSR, Im not sure what the heck is going on here, this problem doesn't seem right.... I NEED to pass emissions so i bought a 1998 p72 ECU, with my JDM OBD2 p72 car runs perfect no check engine lights vtec works and IAB's do what there suppose to and car idles around 750-850 rpms. To temporarily convert the JDM GSR to pass emissions i did the CKF trick so i did not need to install a USDM oil pump, trick btw works perfect, i routed the vacuum lines to what i thought was the correct order for the emissions, i am using a the stock JDM intake manifold, and connected the emissions sensor (purge solenoid) to my stock b16a2 harness, now i randomly tried using the b16 obd2 ecu needless to say i got a PO505 and some erroneous codes, i opt to buy a usdm obd2 p72 ecu now just getting a PO505 when i get to the emissions station and they hook up to run the test, bing light comes on and code pops up. THis is where stuff gets tricky.... I had the same problem with my 1st JDM P72 ECU and Hmotorsonline gave me a replacement which has worked perfectly fine, now what doesn't make sense is the USDM ecu's keep running this code.... Another thing there is a nipple near the throttle body but located on the intake manifold and according to the vacuum diagrams this should be a emissions vacuum line hook up, thing is JDM engines have no emissions and when i run a vacuum line from the purge solenoid to this nipple idle goes from 750-850 down to about 200 rpm's and idles nasty. My only theory is that that might be for cruise control in japan but i honestly dont know. Im stuck and i just need to pass emissions then im going to put it all back together because it runs perfect with the jdm ecu. Another thing i have done the ALL-DATA repair flow chart for this code and it boils down to telling me to start adjusting the fast idle screw, the screw is almost falling out and i only have about 500-600 idle if im lucky. Im screwed i honesty dont know. If anyone can help me out that would be much appreciated.
Alright heres the story, 2000 Civic Si with OBD2 JDM GSR, Im not sure what the heck is going on here, this problem doesn't seem right.... I NEED to pass emissions so i bought a 1998 p72 ECU, with my JDM OBD2 p72 car runs perfect no check engine lights vtec works and IAB's do what there suppose to and car idles around 750-850 rpms. To temporarily convert the JDM GSR to pass emissions i did the CKF trick so i did not need to install a USDM oil pump, trick btw works perfect, i routed the vacuum lines to what i thought was the correct order for the emissions, i am using a the stock JDM intake manifold, and connected the emissions sensor (purge solenoid) to my stock b16a2 harness, now i randomly tried using the b16 obd2 ecu needless to say i got a PO505 and some erroneous codes, i opt to buy a usdm obd2 p72 ecu now just getting a PO505 when i get to the emissions station and they hook up to run the test, bing light comes on and code pops up. THis is where stuff gets tricky.... I had the same problem with my 1st JDM P72 ECU and Hmotorsonline gave me a replacement which has worked perfectly fine, now what doesn't make sense is the USDM ecu's keep running this code.... Another thing there is a nipple near the throttle body but located on the intake manifold and according to the vacuum diagrams this should be a emissions vacuum line hook up, thing is JDM engines have no emissions and when i run a vacuum line from the purge solenoid to this nipple idle goes from 750-850 down to about 200 rpm's and idles nasty. My only theory is that that might be for cruise control in japan but i honestly dont know. Im stuck and i just need to pass emissions then im going to put it all back together because it runs perfect with the jdm ecu. Another thing i have done the ALL-DATA repair flow chart for this code and it boils down to telling me to start adjusting the fast idle screw, the screw is almost falling out and i only have about 500-600 idle if im lucky. Im screwed i honesty dont know. If anyone can help me out that would be much appreciated.
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