aarondevine Posted May 25, 2011 Share Posted May 25, 2011 hi all, im new to the site and was just wondering if anyone could help me out. i have an mb6 and last week the engine decided it wouldnt vtec anymore, the car runs fine but thers just no "kick" like ther used to be! when the engine engaged vtec ther was a real diffence in engine note and was quite noticable but now thats all gone, it also doesnt red line or limit like it used to! the engine light isnt on and i have changed the vtec solenoid but to no avail? anyone any ideas? thanks! Link to comment Share on other sites More sharing options...
WilkesyMB6 Posted May 25, 2011 Share Posted May 25, 2011 how much oil does it have in there? Link to comment Share on other sites More sharing options...
aarondevine Posted May 25, 2011 Author Share Posted May 25, 2011 aye it has plenty of oil and seems to be running fine! Link to comment Share on other sites More sharing options...
johngreen537 Posted May 25, 2011 Share Posted May 25, 2011 Any error codes flashing? Run a diagnostic check with a paperclip! Link to comment Share on other sites More sharing options...
aarondevine Posted May 25, 2011 Author Share Posted May 25, 2011 thanks john, how do i do that? Link to comment Share on other sites More sharing options...
johngreen537 Posted May 25, 2011 Share Posted May 25, 2011 viewtopic.php?f=90&t=4268&p=37703&hilit=ecu+code#p37703dead easy mate, if its erroring, it'll flash a sequence on the dash! Link to comment Share on other sites More sharing options...
civicturbo79 Posted May 26, 2011 Share Posted May 26, 2011 Vtec is controlled by oil pressure throttle postion and the ecu so start will those areas . You need to get the car on a dyno and that way you can see what the engine is doing and then you have an idea where to start .Rich. Link to comment Share on other sites More sharing options...
aarondevine Posted May 26, 2011 Author Share Posted May 26, 2011 done the diagnostic check ther, i got 4 long flashes and one quick one at the end, what code is that? its a 1999 car so im guessin its a p code? Link to comment Share on other sites More sharing options...
civicturbo79 Posted May 26, 2011 Share Posted May 26, 2011 4 long and 1 short is code 41 1 – O2A – Oxygen sensor #12 – O2B – Oxygen sensor #23 – MAP – manifold absolute pressure sensor4 – CKP – crank position sensor5 – MAP – manifold absolute pressure sensor6 – ECT – water temperature sensor7 – TPS – throttle position sensor8 – TDC – top dead centre sensor9 – CYP – cylinder sensor10 – IAT – intake air temperature sensor12 – EGR – exhaust gas recirculation lift valve13 – BARO – atmospheric pressure sensor14 – IAC (EACV) – idle air control valve15 – Ignition output signal16 – Fuel injectors17 – VSS – speed sensor19 – Automatic transmission lockup control valve20 – Electrical load detector21 – VTEC spool solenoid valve22 – VTEC pressure valve Switch23 – Knock sensor30 – Automatic transmission A signal31 – Automatic transmission B signal36 – Traction control found on JDM ecu’s41 – Primary oxygen sensor heater43 – Fuel supply system45 – Fuel system too rich or lean48 – LAF – lean air fuel sensor54 – CKF – crank fluctuation sensor58 – TDC sensor #261 – Primary oxygen sensor63 – Secondary oxygen sensor65 – Secondary oxygen sensor heater71 – Random misfire cylinder 172 – Random misfire cylinder 273 – Random misfire cylinder 374 – Random misfire cylinder 480 – Exhaust Gas Recirculation insufficient flow detected86 – ECT Sensor (Engine Coolant Temperature) circuit range / performance problem90 – Evaporative Emission Control System leak detected in the fuel tank area91 – Fuel Tank Pressure Sensor low input92 – Evaporative Emission Control System insufficient purge flowRich Link to comment Share on other sites More sharing options...
johngreen537 Posted May 26, 2011 Share Posted May 26, 2011 o2 sensor id say! Link to comment Share on other sites More sharing options...
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