21/03/2013
IGAAdmin Administrator Posts: 245 Reputation: 5
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Driver Complaint - Engine jerking, idle high and erratic, stalling and no throttle pedal response. Various fault codes could be stored P1525, P1526, P1550 also limp home mode could be active. Cause - Throttle control valve not closing correctly due to dirt contamination. Rectification Route - Remove the throttle body and open the throttle valve manually. Clean the throttle valve and the housing using a suitable cleaning fluid actuating the throttle valve several times, carry on cleaning until all signs of contaminate have gone. Refit the assembly using a new gasket, ensure the learn values are re instated by switching the ignition on and waiting for approximately 5 seconds. Using suitable diagnostic equipment remove the fault codes and carry out a road test.
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