FMuscle Posted July 2, 2014 Share Posted July 2, 2014 I have this 1st gen EL44 5EFE on my bench that I want to rebuild to put in my EP91 Starlet. I have a small issue, I wanted to keep my intake (4E) because of its longer tubes, but as I was looking I noticed a few things. IAC: the 4E is electrical, the 5E mechanical. Can the 5E ECU run the 4E IAC? Vacuum: there is a LOT more vacuum ports on the 5E intake, and I have nowhere to connect them on the Starlet... There is a sensor/actuator connected at the end of the 5E intake, was also connected to the IAC and steering(?), can I ditch all that to use my 4E intake? I don't have the 5E harness, just the engine and ECU, so I don't have connectors for them... 5E 4E 5E 4E 5E 4EHow of a difference is it to run a 4E ECU on a 5E? From all the things I've been looking at it would be the easiest solution, I think.Of course all would be swapped to 5E, injectors and all, except for the intake/throttle body and the mismatched sensors, actuators and vacuum ports. Quote Link to post Share on other sites
ray0241 Posted July 10, 2014 Share Posted July 10, 2014 where are you buddy, I have a paseo with a 4age intake, that may help you and you could look at it where it sits in the car and all the hoses. Quote Link to post Share on other sites
FMuscle Posted July 12, 2014 Author Share Posted July 12, 2014 (edited) I'm in western australia... And just bought a 4age intake and 5efhe cams last week. the intake, from the pics, is a direct replacement for my 4E intake.So still same dilema, but I' pretty sure that if I reuse the specific sensors from the 4E with the ECU, and the 5E injectors, the ECU will handle it properly.bigger stroke, bigger injectors. same setup. ECU and oxygen sensor wont freak out because of .05L more per cylinder... Edited July 12, 2014 by FMuscle Quote Link to post Share on other sites
5e colin Posted July 12, 2014 Share Posted July 12, 2014 just fit 5e long block in the p9 then fit the p9 ancilarrys onto it also keep 4e electronicks basicly your only swapping the bottom end !!! nothing els in the p9 Quote Link to post Share on other sites
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