Problem, Need Consultation

[Otiris]

Hello again guys and girls :) Im having a wierd problem, when i accelerate hard in first gear, at about 5-6k rpm the acceleration laggs a bit and starts up with new strength. I know about vvti and stuff but it feels different from other altezzas i drove. I own RS200Z m\t btw :) Thanks for help :)

[ilv1004s]

spark plugs?

i think your plugs are on it's way out

[LEX51S]

Or fuel filter.

Spark plugs tend to be through all rev ranges.

[Flexus Lexus]

i agree spark plugs or fuel filter, i actually had the same thing at one point new iridiums an i was all sweet mate. :D