Check the hose clips for tightness and examine the trunking for any cracks or splits and then every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best mannerism to find a leak is to have the engine executive and warm and next spray lighter gas /propane or brake cleaner in the region of each joint in turn. If the engine rev s happening you ve found your leak.
Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast malformation find if you unplug the meter and govern the engine without it. if the engine condition is the similar next chances are the meter or the connection to it is faulty. Its next worth cleaning the MAF sensor wires, as they can acquire coated in imitation of dirt beyond grow old which later offsets the reading. Use some right to use cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt on no account be next to the wires in the same way as whatever as they are entirely fragile
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