B16A3 Swap in EM1 SI
 

So, I have a EM1 that I recently did a b16a3 swap on, the only issue I was tracking was that because it’s a JDM engine I know I couldn’t use the crank sensor, so I did the ecu bypass, still no start it does crank though, used a buddy of mines foxwell scanner and it’s not reading anything off the car except that it’s a civic, so I thought my OBD port was bad, back tracked it and it’s fine it may be the scanner. Anywho checked all fuses their good, FP primes, gets fuel to the rail, it cranks and turns over but doesn’t start, starter is also throwing signal so that’s ruled out I’m assuming ignition or fuel at this point? Maybe an injector hanging or the dizzy isn’t sending anything?

Re: B16A3 Swap in EM1 SI
 

A B16A3 is a USDM engine... not a JDM engine. It IS from a USDM Del Sol and could be an OBD-1 version... which would not have the CKF sensor around the crank pulley as you described. Your issue may be fuel related. A factory B16A3 fuel rail has a fuel pulse dampener on the end whereas, an EM1 just had a large nut on the inlet end of the fuel rail. If you are using the fuel feed line between the OE fuel filter and the fuel rail, you will get almost no fuel into the rail. The fuel injectors may still pump a small amount of fuel... and the spark plugs may even get wet from continued attempts to start the engine, but you will likely never get enough fuel to make the engine run. Switching to an OBD-1 style fuel feed line (from a '92-95 Civic or '94-01 Integra) should solve your issue.

Re: B16A3 Swap in EM1 SI
 

B16a3 is not a jdm engine.

Re: B16A3 Swap in EM1 SI
 

Sorry I should have been more specific, I don’t have a crank sensor on my oil pump*** just gotcha I’ll check those out and let you know thanks! @JRCivic1

Re: B16A3 Swap in EM1 SI
 

Okay, I follow, well, if that’s the case let me ask this, would it work visa versa if I just used the original A2 fuel rail?

Re: B16A3 Swap in EM1 SI
 

I've never heard of an oem fuel feed line being too restrictive to start an OEM b16 motor. You gotta be kidding. You have first hand exp with this issue? I've removed fuel dampers, added them, changed rails, lines, never have I seen such a symptom of little to no fuel. That cannot be it.

Re: B16A3 Swap in EM1 SI
 

I’ve also never heard of it but I mean at this point trying it wouldn’t hurt

Re: B16A3 Swap in EM1 SI
 

Yeah you need to check your ckf bypass wiring. Fuel rail wont do it unless you dont have the proper washers for the banjo bolt and nut on the fuel rail.

Re: B16A3 Swap in EM1 SI
 

If the A2 fuel rail has the 17mm bolt instead of the fuel dampener, then yes, it should work. This is assuming that the A2 fuel rail bolts to the intake manifold as well.

If the inlet stud has a hole drilled straight through it approximately where the center of the banjo fitting would be when installed between the inner and outer washers, it will work. I suppose you could convert a fuel rail with a smooth inlet stud and essentially bypass the fuel dampener if you drilled a similar style/sized hole though it.

Re: B16A3 Swap in EM1 SI
 

Gotcha I’ll give it a try