Petrol Diagnostics: Vauxhall Astra 1999 1600 X16SZR

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Vauxhall Astra 1999 1600 X16SZR - Missfire under load Archived Message
Posted by MARTIN ROGERS on April 21, 2005, 9:46 pm
MISFIRE UNDER LOAD FEELS LIKE A LEAD BREAKING DOWN,
ORIGINAL FAULT WAS A VERY BAD MISFIRE AFTER FITTING A NEW ECU (ALL GENUINE PARTS) DUE TO LOSS OF PRIMARY SIGNAL TO CYLINDERS 2&3 AS GOOD MEASURE FITTED NEW COIL PACK, HT LEAD SET AND SPARK PLUGS.
HAVE SINCE REPLACE TPS SWITCH, MAP SENSOR, TESTED AND CLEANED INJECTOR, INCREASED FUEL PRESSURE TO 1.5BAR, LAMBDA SWITCHING FINE EGR SIGNALS OK I THINK, SINCE TRIED WITH IT BLOCKED OFF. OSCILLOSCOPE ON THE RPM SENSOR, LAMBDA, AND INJECTOR ALL LOOK OK. WHAT HAVE I MISSED ?? ANY SUGGESTIONS ?

Message Thread:

Vauxhall Astra 1999 1600 X16SZR - Missfire under load - MARTIN ROGERS April 21, 2005, 9:46 pm
replies - ray April 22, 2005, 7:44 am
replies - Steve Norman April 22, 2005, 1:12 pm
replies - keith penman April 24, 2005, 10:31 pm
replies - Steve Hewson April 25, 2005, 7:29 am
replies - keith penman April 26, 2005, 10:49 pm
replies - Mike April 27, 2005, 6:38 am
replies - Steve Nicholas April 27, 2005, 7:31 pm
replies - Paul Howd April 27, 2005, 8:21 pm
replies - Tony Sefton April 27, 2005, 8:55 pm
fixed - Martin Rogers April 28, 2005, 8:53 pm