Turbo Tacoma... Need help!! - Toyota Nation Forum : Toyota Car and Truck Forums

h0twh3els · 06-10-2006, 10:20 PM

Hey Guys/Girls,

I've got a 98 Tacoma 2RZ with a T3/T04S 60-1, .7/.63 a/r... 550 injectors, 255lph pump, e-manage ultimate.. so on so forth...

I've been having a problem recently and I have no idea what it is. Since i'm new to Toyota's, i'm hoping someones knowledge can help me out. The stock limiters were 5800rpms, we succesfully bumped them up to 6250 using the e-manage. Just this past week, the truck will hit about 4800rpms and it feels like it's bouncing off the rev limiter again. I'm not sure what it is. Injector Duty Cycle goes to 100%, afr's bounce from 11.4-12.7 dumping fuel out of the exhaust..... Now, while in park, it will come off the limiters at 6250, in drive it's 4800 and if you put it in nuetral while driving, it's also 4800rpms...

Any thoughts?

TcmaBoy · 06-11-2006, 02:23 PM

See if LC Engineering will lend you a hand. They are the 4 cyl experts. You might also give customtacos.com a try.

http://www.lcengineering.com/