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I was wondering if any one on here can help me out. A mate of mine brought a rebuild rb25det long motor to replace his blow one and has been slowly fitting it to his car. The guy who was origional fitting it for him bailed out so i was finishing it of for him. When the time came to start it, it would crank but not start. A few checks later found that there is fuel but no spark or injector pulses. So first impression is that its got a faulty cam angle sensor, but upon closer inspection relised its a series 2 rb25det instead of a series 1. Is this the main problem? So my question is: is there a way to make this car run this motor? eg maybe the CAS wiring needs to be rewired differently, or a s2 ecu or maybe just pluging in a power fc. Thanks for reading my LONG and FIRST post. Any help will be appreciatted.

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no not yet, didn't know they were different but i don't have access to one

but then again i don't think it could be the air flow meter because it's still using the s1 loom and ecu. What i want to know is can the original s1 r33 loom, ecu etc somehow run a series 2 engine with the different cas.

Did the engine come with its own coil packs? S2 coil packs have the ignitor built-in; S1 needs an ignitor module.

no still using s1 coils. everything on the car is still series 1. the only thing that is s2 is the bottom end and head with the s2 cas. both manifolds, turbo, coils, air flow meter, ecu and everything else is s1. i don't think my mate would want to swap everything over to s2 just to run his car, eg coils, airflow meter, ecu etc. that would be alot of stuffing around and a waste of money. it would be easier to just swap exhaust cams over so that it can run the s1 cas, but i want to know is there an easier way? on another note are r33 s1 and s2 power fc same or different, because he has a new power fc ready to go (don't know model number) in after the motors run in. i wasn't game enough to plug it in and see if it would start.

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