my seat leon tfsi fr 2007 Manuel
while I drive on low revs rpm drop to 800 from 1500 at 20 mph and shake some times violently same when 70 mph from 2500 to 2000.
this happens sometimes but every day when I drive.
I have changed spark plugs, coil pack,pcv valve, high pressure fuel pump, cam followed, breather pipe, maf cleaned.but still no luck.
please help me
no engine light
nothing comes on to diagnostic machine
while I drive on low revs rpm drop to 800 from 1500 at 20 mph and shake some times violently same when 70 mph from 2500 to 2000.
this happens sometimes but every day when I drive.
I have changed spark plugs, coil pack,pcv valve, high pressure fuel pump, cam followed, breather pipe, maf cleaned.but still no luck.
please help me
no engine light
nothing comes on to diagnostic machine
