BMW L33 swap problems
#1
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BMW L33 swap problems
Hi, I am just about done with my BMW swap but the engine is starting to drive me crazy. It is a 05 L33 with Camaro intake,injectors,TB,EPS cam,headers,T56 ect. It has a Chevy Thunder harness/ecu, new IAC,MAP,TPS....53psi fuel pressure at the rail.
It will start but the idle is a little low and hunting, sometimes it will take throttle a couple times but most time it will only bog and dies if you hold the throttle open. Anyone have ANY idea what is going on?????
Thanks inadvance!!!!
It will start but the idle is a little low and hunting, sometimes it will take throttle a couple times but most time it will only bog and dies if you hold the throttle open. Anyone have ANY idea what is going on?????
Thanks inadvance!!!!
#3
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Stock throttle body? Did you do an IAC relearn and set the TPS?
Jon
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Jon
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Injectors all spraying? I've done two swaps and both times I had clogged or non-functional injectors. See if it will run on propane or starting fluid any better... Lean O2's and maxed fuel trims would be a good indicator of this.
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BUMP Fixed it with a base tune ecu from a guy on ebay. The car starts and idles and revs like it should. Just a little fyi NEVER buy anything form Leonard Sparks (aka Chevythunder.com) he will be right beside you till you have a problem the he tells you he "cant hold your hand" and that "you are on your own".
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Then why does the car work with the new ecu that just has a basic 5.3/6speed "get it started" tune? It did not work with the one he tuned for all the specs that he asked for? 5.3-6spd-gear-tires size-what maf,tps, iac, tb, map ect I had (sounds like at least simi custom tune). Just all lead me to beleve the ecu is bad and he told me it was up to me to figure it out......................
Last edited by 7969; 06-03-2012 at 08:56 PM.