Re: 2001 MONDEO 2.0 TDDI SURGING ON PART THROTTLE Archived Message
Posted by kiran chandra on February 22, 2007, 10:53 pm, in reply to "Re: 2001 MONDEO 2.0 TDDI SURGING ON PART THROTTLE"
Hi, Yes, you can see the vacuum switching nicely when actuating EGR while engine running. I'm confident there is nothing wrong with EGR valve (new!!), EGR solenoid or vacuum system. Have checked PWM to EGR, and it is consistent with vacuum on/off time. I am sure ECU is commanding EGR to open at wrong time. Question is why?? As I said in previous post, MAF governs EGR operation (via ECU) unless I am barking up wrong tree. So next course of action, replace MAF.Thanks
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