sr20det starting problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

seanc · 09-14-2008, 05:08 PM

ok swapping in a s13 sr in a s13 calum ecu 650cc injectors and z32 maf only things that arent stock. ok the car would start then die. so i decided to pull off the fuel rail which has pressure, then i pulled off the coil packs and then the CAS now when i first start to rotate the CAS the 4 injectors will fire a short small squirt of fuel then after that if you continue to rotate the CAS, like the engine was running, no fuel squirts again, although all the coil packs fire at the appopriate time. then if you stop rotating and start again the injectors will give a small squirt. all injectors have 12v and they get the ground signal at first then nothing. all injector signal wires are ok, checked with a ohm meter. any ideas? thanks!

FRoSt415 · 09-14-2008, 11:19 PM

could it be that the ECU is not Tuned for the z32 maf? if its not that might be the problem.i would recheck maf wires to make sure their right also. but it doesnt really sound like thats your problem so you ahve fuel pressure in the mainn line going to the fuelrail? check the fuel pump if u havent changed it and the fuel filter and make sure its not clogged.

09-14-2008, 05:08 PM	#1
seanc Leaky Injector Join Date: Nov 2005 Location: Lake Stevens, Wa Posts: 66 Trader Rating: (0) Feedback Score: 0 reviews	sr20det starting problem ok swapping in a s13 sr in a s13 calum ecu 650cc injectors and z32 maf only things that arent stock. ok the car would start then die. so i decided to pull off the fuel rail which has pressure, then i pulled off the coil packs and then the CAS now when i first start to rotate the CAS the 4 injectors will fire a short small squirt of fuel then after that if you continue to rotate the CAS, like the engine was running, no fuel squirts again, although all the coil packs fire at the appopriate time. then if you stop rotating and start again the injectors will give a small squirt. all injectors have 12v and they get the ground signal at first then nothing. all injector signal wires are ok, checked with a ohm meter. any ideas? thanks! __________________ Looking For A Holset HX 35

09-14-2008, 11:19 PM	#2
FRoSt415 Zilvia Junkie Join Date: Dec 2006 Location: san francisco Age: 37 Posts: 305 Trader Rating: (0) Feedback Score: 0 reviews	could it be that the ECU is not Tuned for the z32 maf? if its not that might be the problem.i would recheck maf wires to make sure their right also. but it doesnt really sound like thats your problem so you ahve fuel pressure in the mainn line going to the fuelrail? check the fuel pump if u havent changed it and the fuel filter and make sure its not clogged.