exhaust gas flow rate and boost problem

**wayneerwin160675** · 12th September 2016, 01:27 PM

hi all, i have a 2005 astra h 1.9 cdti and i am getting a fault with insufficient exhaust gas flow rate, could this be caused by the two blanking plates i have on the egr valve, also i have a problem with power, when in first and second gear i have a lack of power untill about 2500 rpm then the power comes in all at once, i have changed the egr valve cleane boost sensor and tried another one changed boost solenoid and cant see any boost leaks.

**pecky** · 16th September 2016, 05:14 PM

If you haven't had the EGR mapped out then blanking plates will cause an issue. Some people drill 10mm holes in the plate to avoid issues, but that defeats the object.

**domtorredo** · 8th October 2016, 07:23 PM

Originally Posted by wayneerwin160675

hi all, i have a 2005 astra h 1.9 cdti and i am getting a fault with insufficient exhaust gas flow rate, could this be caused by the two blanking plates i have on the egr valve, also i have a problem with power, when in first and second gear i have a lack of power untill about 2500 rpm then the power comes in all at once, i have changed the egr valve cleane boost sensor and tried another one changed boost solenoid and cant see any boost leaks.

Check throtle body if its not sticking, these engine suffer from bad swirl flaps can cause problems too, check them too

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