Car Wont Start . Ecu code 21 . 34 . New motor :(! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

silva.240 · 02-10-2011, 04:38 PM

OK so basically i had a 92 240sx automatic. The motor blew about a year ago and finally i have started working on the car.
First step was to remove the automatic transmission and replace with manual. i got a stainless steel clutch filine. new slave and master cylinder along with 90 5-speed tranny.

I also had to replace the engine , obvioulsy, and i got a junk yard motor that had good compression of 180- 185 across cylinders.

I installed into my 240 and had gotten it started fine.

I had the motor started fine until it overheated. basically an issue with the air bubbles in the radiator system. so i begin to remove these damn bubbles when suddenly my motor starts "running out of gas" it eventually dies. just cranks. i refilled the gas - it wasn't the problem. the motor still cranks but doesn't turn.

i checked the fuel system. and fuel reaches the injectors. i replaced the coil and wires but still dont have spark. my dizzy cap seems fine. i have a replacement dizzy and and cap , wires and rotor.

finally i checked my ecu and code 21 and 34..
i'm assuming i damaged the knock sensor , but code 21 seems to be the reason no spark to start my motor. everything seems fine in wiring. the fuses seem fine.

i dont know what else to check...

please if i dont get my car moved by sunday they want to tow it. i need to finish asap. beers in the sfv to get this problem solved...... thanks

silva.240 · 02-10-2011, 06:21 PM

how about a bump. i'm assuming power transistor module or igniter chip right besides ignition coil. any thoughts

silva.240 · 02-10-2011, 10:10 PM

it was the igniter chip. 100 bucks from autozone with a lifetime warranty. i hope that bull-**** is over. now to making sure there isn't anymore air bubbles in the cooling system. The culprit of what helped find the igniter trouble.

help removing air froom coolant

ganju · 02-14-2011, 10:01 AM

everytime i fill my radiator i jack up the front of the car or try to keep the pressure down in the radiator by hosing it down until the thermostat opens the keep topping off.. it works for me hope it does for u...

02-10-2011, 04:38 PM	#1
silva.240 Zilvia Member Join Date: Apr 2007 Location: so.cal Age: 35 Posts: 229 Trader Rating: (5) Feedback Score: 5 reviews	Car Wont Start . Ecu code 21 . 34 . New motor :(! OK so basically i had a 92 240sx automatic. The motor blew about a year ago and finally i have started working on the car. First step was to remove the automatic transmission and replace with manual. i got a stainless steel clutch filine. new slave and master cylinder along with 90 5-speed tranny. I also had to replace the engine , obvioulsy, and i got a junk yard motor that had good compression of 180- 185 across cylinders. I installed into my 240 and had gotten it started fine. I had the motor started fine until it overheated. basically an issue with the air bubbles in the radiator system. so i begin to remove these damn bubbles when suddenly my motor starts "running out of gas" it eventually dies. just cranks. i refilled the gas - it wasn't the problem. the motor still cranks but doesn't turn. i checked the fuel system. and fuel reaches the injectors. i replaced the coil and wires but still dont have spark. my dizzy cap seems fine. i have a replacement dizzy and and cap , wires and rotor. finally i checked my ecu and code 21 and 34.. i'm assuming i damaged the knock sensor , but code 21 seems to be the reason no spark to start my motor. everything seems fine in wiring. the fuses seem fine. i dont know what else to check... please if i dont get my car moved by sunday they want to tow it. i need to finish asap. beers in the sfv to get this problem solved...... thanks

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02-10-2011, 06:21 PM	#2
silva.240 Zilvia Member Join Date: Apr 2007 Location: so.cal Age: 35 Posts: 229 Trader Rating: (5) Feedback Score: 5 reviews	how about a bump. i'm assuming power transistor module or igniter chip right besides ignition coil. any thoughts

02-10-2011, 10:10 PM	#3
silva.240 Zilvia Member Join Date: Apr 2007 Location: so.cal Age: 35 Posts: 229 Trader Rating: (5) Feedback Score: 5 reviews	it was the igniter chip. 100 bucks from autozone with a lifetime warranty. i hope that bull-**** is over. now to making sure there isn't anymore air bubbles in the cooling system. The culprit of what helped find the igniter trouble. help removing air froom coolant

02-14-2011, 10:01 AM	#4
ganju Join Date: Jul 2007 Location: fl Posts: 22 Trader Rating: (0) Feedback Score: 0 reviews	everytime i fill my radiator i jack up the front of the car or try to keep the pressure down in the radiator by hosing it down until the thermostat opens the keep topping off.. it works for me hope it does for u...