QuestionQUESTION: my van was running great even during idle then i shut it off. now it wont start. i pulled some plug wires and i got spark and i got feul coming out the fuel filter with good pressure when i hit the key but im getting no responce any ideas?
ANSWER: Josh,
You will need to check the codes first to see if there are any errors.
The ECU has 5 modes of operation, for diagnostics codes, it has to be set to mode 3.
1. Make sure the screw next to the viewing window is turned clockwise.
2. Turn the ignition on
3. Both LEDs with flash once, then a pause, then a second time, then a pause, etc. etc. up to 5 times then will repeat the process. After is has flashed 3 times then turn the screw completely anti-clockwise. - this will select mode 3.
4. The LEDs will now flash codes. 55 means that everything is normal. The rest are written below.
5. When finished, turn the screw back to clockwise and the ECU will reset itself automatically.
Don't worry about the '5th cylinder misfire' and '6th cylinder misfire' or anything, the codes are the same for all Nissans.
11 Crank Angle Sensor/Camshaft Position Sensor.
12 Air Flow Meter/Mass Air Flow Sensor.
13 Engine Coolant Temperature Sensor.
14 Vehicle Speed Sensor.
21 Ignition Signal.
22 Fuel Pump.
23 Idle Switch.
24 Throttle Valve Switch.
25 Idle Speed Control Valve.
28 Cooling Fan Circuit.
31 ECM.
32 EGR Function.
33 Heated Oxygen Sensor.
34 Knock Sensor.
35 Exhaust Gas Temperature Sensor.
36 EGR Control-Back Pressure Transducer.
37 Knock Sensor.
38 Right hand bank Closed Loop (B2).
41 Intake Air Temperature Sensor.
42 Fuel Temperature Sensor.
43 Throttle Position Sensor.
45 Injector Leak.
47 Crankshaft Position Sensor.
51 Injector Circuit.
53 Oxygen Sensor.
54 A/T Control.
55 No Malfunction.
63 No. 6 Cylinder Misfire.
64 No. 5 Cylinder Misfire.
65 No. 4 Cylinder Misfire.
66 No. 3 Cylinder Misfire.
67 No. 2 Cylinder Misfire.
68 No. 1 Cylinder Misfire.
71 Random Misfire.
72 TWC Function right hand bank.
73 TWC Function right hand bank.
76 Fuel Injection System Function right hand bank.
77 Rear Heated Oxygen Sensor Circuit.
82 Crankshaft Position Sensor.
84 A/T Diagnosis Communication Line.
85 VTC Solenoid Valve Circuit.
86 Fuel Injection System Function right hand bank.
87 Canister Control Solenoid Valve Circuit.
91 Front Heated Oxygen Sensor Heater Circuit right hand bank.
94 TCC Solenoid Valve.
95 Crankshaft Position Sensor.
98 Engine Coolant Temperature Sensor.
101 Front Heated Oxygen Sensor Heater Circuit right hand bank.
103 Park/Neutral Position Switch Circuit.
105 EGR and EGR Canister Control Solenoid Valve Circuit.
108 Canister Purge Control Valve Circuit
---------- FOLLOW-UP ----------
QUESTION: hey thanks for your info. where can i get a ECU? I WENT OUT THIS MORNING AND MY VAN STARTED RIGHT UP LIKE THERE WAS NO PROBLEM,SO I LET IT RUN FOR ABOUT 10-15 MIN. NOW IT WONT START. I UNHOOKED MY BATTERY TO MAYBE RESET THE BRAIN AND I THOUGHT IT WORKED BUT SINCE THIS MORNING IVE TRIED IT AGAIN AND STILL DONT START. BUT IT IS NOW 9:23 AND ITS BEEN A COUPLE OF HOURS SO IM FIXIN TO TRY IT AGAIN. SO I WOULD LIKE TO CHECK MY CODES SO WHERE CAN I GET THE ECU CAUSE NOONE CAN PUT IT ON A COMPUTER BECAUSE ITS OLDER THAN A 96. ITS A 95 THANK YOU VERY MUCH.
AnswerThe ECU is behind the kick panel and all you need is a screwdriver to turn the screw by the instructions provided and read the flashing light to get the codes indicated. Email me back the codes and we'll work to correct the problem.
Now, I would check the basics like it has spark and the fuel is pressurizing. Probably the distributor coated in oil or the fuel pump has failed. Those are the two most common.
