vectra "B" 1.8 z18xe (ecotec) poor acceleration help

Asked by May 14, 2013 at 06:19 PM about the 2001 Vauxhall Vectra

Question type: Maintenance & repair

My vectra's developed a little acceleration issue its suddenly turnt a bit sluggish,
generally starts fine idles fine i can pull out of junctions ok and get the car up to speed
(eventually) i can only find forums on the obvious checks so to save the hassle iv not
long serviced the car new quad electrode sparks oil/filter air filter fuel filter etc iv
checked for vacuum leaks the crank position sensor is new , i have zero fault codes
and plugged my laptop into the obd2 socket the accelerator pedals reading fine iv
checked the MAF's reading lambda reading im close to going bananas so please help
thanks in advance

3 Answers

110

where in the world do they have such a vehicle? Literally

5 people found this helpful.
20

i had astra 1.6 8v from 2003 start fine but when i press fot donw on accelarate starttapping and missing fire.

2 people found this helpful.
10

Try cleaning the egr valve, if that doesn't work then try changing the top wiring harness.

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