neeeddd heeelppp!!!!!

[maistro0]

ok i got a 1992 nissan pick up truck 4 cil auto and my problem is that it wont rev up more then 2000 rpm the mechanic change the computer on it but its doing the same thing deose anybody have any sugesstion on what it could be remember at park it wont rev more than 2000 rpm thanks

[tomas hayden]

check the coil for cracks.