SR20DET Startup issues

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Sm887
Posts:23
Joined:Sun Apr 10, 2016 10:27 pm
SR20DET Startup issues

Post by Sm887 » Thu Apr 20, 2017 9:15 pm

Hi!
I have an 200SX S14 with the SR20DET engine. I have wired up ECU Master, but i cant get it to start. Car was running fine before with Apexi PFC.

Stock SR20 with 550cc injectors.

I have checked every injector using the output test. I do also have spark on every coil. Note that Cyl 1 is wired to ign. output 6.

I have verified timing with the lamp, and its correct. I was at first struggling alot, and the timing was totaly off.
I enabled the advanced filter function and set output offset to 2. And then timing was perfect. I have also checked that the cas is in the correct posision.

But still it wont start. I have tried increasing / decreasing fuel on both prime pulse and cranking fuel. I have some bangs out the exhaust when trying to start. But its nowhere near starting at all.

I am running out of ideas and i was hoping you could help me out.

Map and log file is attached.
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20170420_2050.emulog
Log
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map stian.emu
Map
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RHD
Posts:537
Joined:Tue Oct 07, 2014 4:28 pm

Re: SR20DET Startup issues

Post by RHD » Fri Apr 21, 2017 1:02 pm

you are using a very strange arrangement of ignition output connections and sequence, i would plug the wires into IG1=coil 1, IG2=coil 2, IG3=coil 3 & IG4=coil 4, and check your firing sequence 1342 or 4213

WHPZach
Posts:184
Joined:Tue Oct 07, 2014 11:13 pm

Re: SR20DET Startup issues

Post by WHPZach » Fri Apr 21, 2017 6:16 pm

Bangs or backfires mean your firing sequence is wrong or your timing is 360 degrees out.

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