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Acceleration flat spot.
Old 20-01-2018, 12:32 PM
GunMentalGrey GunMentalGrey is offline
Join Date: Aug 2016
Location: Lake Macquarie
Posts: 141
Default Acceleration flat spot.

Ive had a search, and canít quite find a matching fault. My 2007 D40 STX manual (145000km) is getting to almost undriveable stage so itís time to get the spammers out. Not long after I got it I gave it a liquimoly purge which cleaned up the frequent limp mode. Last service I got the mechanic to install new filters, including fuel. Recently the car has been hesitating off the mark once warmed up. Today, it was running really rough between about 1500 and 2300 rpm when trying to accelerate. It seemed to run just fine Ďjust driving alongí. It was worst in 1st and 2nd gear, and a couple of times felt like limp mode, except not running smoothly, so I switched off and on again which seemed to help. Once over the point where the turbo could properly kick in it would run fine and pull strong but it meant racing off from the lights to keep the revs up enough to allow a gear change without dropping back into the dead zone.

Iíve got an EGR plate to fit, I tend to clean out the intercooler and turbo lines and check the suction control valve and replace as required.

Anything else I should be looking at?
Thanks In advance
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