hi guys i have a 98 r34 gt auto 2 dr and it has started to play up recently so just wondering if someone can pinpoint the problem.
the car works fine yet when i accelerate hard (floor it or go up a hill) the revs go crazy and start jumping going back and forth and the car starts jerking around violently. It seems fine when driving normally (taking it easy) and there are no issues with the idle. It recently started to get worse after i serviced it (changed oil, fuel filter, oil filter, air filter and soon to change plugs) yet it did happen occasionally before that. Iv already changed my coil packs and everthing else in the car seems to run fine. Im thinking its either the ecu, injectors or fuel pump yet after reading around seems lik it could be the o2 sensor aswell?
any feedback would be much appreciated.
ps if in wrong section pls move or if there is another topic similar jus direct me to that one as i couldnt find it using search.
thanks