1uzfe ecu issues

[eke_zetec_RWD]

i transplanted and wired up a 1997 1uz (lexus v8) with a standard ecu into a cruiser, starts and runs fine, except when driving it feels like it stops making more power at around 4g, as if the ecu thinks its in nuteral or sumfing. i have played around with the wires that use to come from the shifter but doesnt change anything. any one had any experences stock 1uz ecu and a re wired transplant?? with a link in a lambo the pull hard all the way to limiter and so yea, i have never driven one in a standard sc400 or ls400 so i dont know how they suspose to go on standard ecu. altho i have heard that they are around 20 to 30 hp down on a link.......

any tips

[crazy_rich]

hey, I've heard of some weird things happening when 1uz's are transplanted using components that were not originally with that engine, i.e. (especially) transmission, fuel pump, O2 sensors etc personally I couldnt be bothered pissin round with it, have you signed up with the lextreme forums, they are all pretty helpful and definately knowledgable fellas. http://www.lextreme.com im sure someone there will help ya.

[peteretep]

how long did the transplant take and what car is it?

[eke_zetec_RWD]

ha well it turned out the computer or wireing wasnt the problem, lack of fuel pressure as a steel line in the tank was cracked and there fore fark all pressure at engine. goes real good now, hums along!!

took about 2 months on and off, its in a fj62 landcruiser - what a nightmear! had to extend bell housing input shaft etc 100mm so heads wudnt hit fire wall. other wise wasnt to bad i spose. took around 150hrs.