lsracer27

i just finished my turbo ls in an integra and i have an fmu and inline fuel pump, missing link,also an external wastegate, t3 turbo, and first of all i dont hold boost well but besides that when i take third gear higher up in rpms it blew my ecu fuse the first time and then it fryed my ecu the second i've only driven it twice and the boost was at 10 but i later found that the line was kinked so it could have been alot more....any ideas?

Mad Cow

Um.. no.

RyanEJ8

As far as your ecu blowing, not caused by boost. Probably you had something wired wrong. We need more info to diagnose why you're not holding boost properly though. What wastegate do you have? The positioning of it? Boost controller? Where is your vac source for the waste gate hooked up to?

lsracer27

i have a turbonectis evolution wastegate with a 5 pound spring and its the bottom vac port on the wastegate to the compressor housing vac source, and no boost controller. i dont know what i would have wired wrong because i didnt really wire anything at all except an inline fuel pump but that should cause anything becase the first time it happened it wasnt on?

RyanEJ8

When you have your your wastegate hooked up to the compressor housing you are not reading the actual boost the engine is receiveing. Some of the boost pressure is lost through the intercooler and piping.

lsracer27

alright thanks ill try a dif. spot...and im goin get a new map sensor and ecu and see what happens i guess