2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

I need help with the ecu codes I pulled

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Old Jun 10, 2006 | 05:58 PM
  #1  
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I need help with the ecu codes I pulled

8 - airflow meter (I guess I need a new MAF)
10 - intake thermo sensor (whats this?)
17 - Feedback System for O2 Sensor (huh?)
30 - Split air bypass (no clue)
33 - port air bypass (help me)
38 - Accelerated warm up system and air supply valve (the black sensor on top of the manifold by the intercooler right)
51 - Fuel Pump Relay (im confused to which one this is)

Help me out guys. It seems like I need the US S5 TII Upper Intake manifold and throttle body with all its sensors. If anyone has this stuff, let me know, because I have cash in hand. I can also give you a replacement jdm uim and throttle body for the people with no smog in their state. please help me out guys. I got til the end of the month, and I will have to cheat after that.
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Old Jun 10, 2006 | 06:46 PM
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ok, update. I reset the codes and now I only have codes 30, 33, 38, 51.
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Old Jun 10, 2006 | 07:38 PM
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Go to the Self-Diagnosis Function section of the FSM Fuel system chapter and follow the instructions for checking each code. Code 30 is on page F2-17.

Since you have a J-spec engine you won't have a split air solenoid valve (on the ACV) or the AWS solenoid valve. You'll need to measure the resistance across the terminals of those solenoids and put a resistor of equal value in the empty connector on the harness to fool the ECU into think they're still there.
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Old Jun 10, 2006 | 07:58 PM
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Originally Posted by NZConvertible
Go to the Self-Diagnosis Function section of the FSM Fuel system chapter and follow the instructions for checking each code. Code 30 is on page F2-17.

Since you have a J-spec engine you won't have a split air solenoid valve (on the ACV) or the AWS solenoid valve. You'll need to measure the resistance across the terminals of those solenoids and put a resistor of equal value in the empty connector on the harness to fool the ECU into think they're still there.
Sorry for soundin like an idiot but where can I get resistors? Autozone? Well, thanks for the info. I will check out the fsm.

Last edited by Eternal_Gamer; Jun 10, 2006 at 08:01 PM.
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Old Jun 10, 2006 | 08:16 PM
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Radioshack would be a better idea.
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Old Jun 10, 2006 | 10:54 PM
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well i need to pass smog anyways, so i guess i will just get a S5 TII UIM With all the sensors
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Old Jun 11, 2006 | 01:16 AM
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There are no sensors involved, only solenoid valves. If you only have to pass a sniffer test then you'll probably get away with it. You might need a US-spec AVC bolted to the J-spec UIM. If there's a visual inspection as well then you might fail because of the missing AWS solenoid valve. In that case you'll need the US-spec UIM.
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Old Jun 11, 2006 | 12:54 PM
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Well the JDM ACV or mising solenoid valves affect the sniffer test. I am failing with high NOx but pass HC and CO easy.
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Old Jun 12, 2006 | 01:00 AM
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Not sure to be honest. The AWS only operates during cold starts, so unless the test includes that it can't have any effect. According to the FSM, the split air solenoid valve is open in 5th gear or at high altitude, so again unless the test includes that it can't have any effect.

I think your problem lies elsewhere.
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