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View Full Version : new sr20det wired up starts and revs all the way up and spools HELPP


thizzen4
03-26-2012, 03:03 PM
but when i drive it wont go past 3500 -5000 rpm when i get on it

just bangs hella loud/backfires/and losses power and when stop rpm bounce from 300-700rpm and some times willl die

maf?tps?timming

tryed ka maf and sr20 sentra maf

and checked tps and was good

ANY IDEAS helpp

!Zar!
03-26-2012, 03:18 PM
Does it run any better / worse with the maf connected?

Check your piping couplers. Boost leakkkkkkk

thizzen4
03-26-2012, 03:59 PM
k all check right noww

thizzen4
03-26-2012, 04:02 PM
no boost leaks runs fine and revs all the way up and spools when sitting[ not in gear ]
but idoling keeps bouncing from 300-700 when idoling and when driving it and get on it . it back fire and lags and loses power any where between 3000rpm-5200rpm

di-devol
03-26-2012, 04:04 PM
Maybe timing, verify that your cas is turned mostly clock-wise, if it's mostly counter clock-wise your timing is retarded, would explain hitting boost.

thizzen4
03-26-2012, 04:05 PM
check the maff right now to see if it runs any diff but tryed 2 mafs adn no mafss adn all ran about the same to tell u the truth the ka and sr20de maf

thizzen4
03-26-2012, 04:05 PM
k di devol all check

and just took fuel rail off and only 3 injectors are spraying :(