Sr Swap Problems....help! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

minboostS13 · 05-04-2004, 06:51 PM

1990 240SX with Redtop SR20DET.
Blitz FMIC
Greddy hotpipe, and Type S BOV
SR20DET MAFS
Blitz Downpipe
FAL dual fans, Koyo radiator.

These are my basic mods, and i figured they might be of some relevence. I turned the key, and she starts but wont idle. Unplug the MAFS, and she wont rev past 2000RPM, but she idles smooth. When i rev her with the mass air plugged in, she stutters real bad, bucks, and tries to die. Out of nowhere, i might get a few seconds of good revving. I obviously changed the MAFS to the stock SOHC KA mass air. I rewired it good, and checked the voltage...its getting power. Ive already gone through three MAFS'. 2 KA's and an SR. I dont think that it could be three bad mass airs. I pulled the fuel line off the filter, and ran a water bottle to the hose and turned the key to see if the fuel pump would spit fuel, and it did. I checked my timing twice already, and its perfect at 15 degrees. Everything lines up, but when i twist the CAS left and right in its hole, it doesnt change a thing. The car runs the same way no matter what i do. I pinched the fuel lines, on both the return line, and the fuel filter line on the injector rail inlet, and nothing changed....she didnt stall or anything. As of right now, im completely lost on what the problem is. Im running an S13 blacktop ECU...code number E5. Apparently, the ECU is supposed to work fine. Wayne at phase 2 told me it would work, and so did heavy throttle. Im trusting they are right since they havent steered me wrong yet. My wiring harness was done by Garage Works LTD, and i trust they did it right. Everything except for the boost selonoid has a mate. The Intercooler piping has been checked for leaks time and time again, and the intake has no leaks after the MAFS. Please give me some advice. I know its almost impossible to diagnos online, but i have noone here to help me. Im from VA Beach, but i got stationed in NJ for awhile due to the war. So as i said, im in the middle of nowhere, and have noone to help guide me. I appreciate all ideas. Thanks again.

05-04-2004, 06:51 PM	#1
minboostS13 Join Date: Apr 2004 Location: Virginia Beach VA Age: 48 Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	Sr Swap Problems....help! 1990 240SX with Redtop SR20DET. Blitz FMIC Greddy hotpipe, and Type S BOV SR20DET MAFS Blitz Downpipe FAL dual fans, Koyo radiator. These are my basic mods, and i figured they might be of some relevence. I turned the key, and she starts but wont idle. Unplug the MAFS, and she wont rev past 2000RPM, but she idles smooth. When i rev her with the mass air plugged in, she stutters real bad, bucks, and tries to die. Out of nowhere, i might get a few seconds of good revving. I obviously changed the MAFS to the stock SOHC KA mass air. I rewired it good, and checked the voltage...its getting power. Ive already gone through three MAFS'. 2 KA's and an SR. I dont think that it could be three bad mass airs. I pulled the fuel line off the filter, and ran a water bottle to the hose and turned the key to see if the fuel pump would spit fuel, and it did. I checked my timing twice already, and its perfect at 15 degrees. Everything lines up, but when i twist the CAS left and right in its hole, it doesnt change a thing. The car runs the same way no matter what i do. I pinched the fuel lines, on both the return line, and the fuel filter line on the injector rail inlet, and nothing changed....she didnt stall or anything. As of right now, im completely lost on what the problem is. Im running an S13 blacktop ECU...code number E5. Apparently, the ECU is supposed to work fine. Wayne at phase 2 told me it would work, and so did heavy throttle. Im trusting they are right since they havent steered me wrong yet. My wiring harness was done by Garage Works LTD, and i trust they did it right. Everything except for the boost selonoid has a mate. The Intercooler piping has been checked for leaks time and time again, and the intake has no leaks after the MAFS. Please give me some advice. I know its almost impossible to diagnos online, but i have noone here to help me. Im from VA Beach, but i got stationed in NJ for awhile due to the war. So as i said, im in the middle of nowhere, and have noone to help guide me. I appreciate all ideas. Thanks again.