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Old 02 Oct 2007, 06:42 pm
Join Date: Aug 2007
Posts: 56
Default how to read a ECU code?

i heard that the code on the ECU can tell you if its a v-tec and manual computer, how do i read this code? were can i get a automatic ECU that a v-tec at a cheap price?i have a 1993 honda civic, i bought a new engine its the JDM B16 v-tec 2gn the ECU that i have its a non v-tec. do i need to buy a v-tec ECU or how to i change it to a v-tec, i want to make sure that if i buy a other ECU that its the one i need.
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Old 02 Oct 2007, 06:46 pm
Join Date: Aug 2007
Posts: 32

Some computers can be put into the self di mode to read the code. Others you have to use a code reader. It all depends on whatMakeModel And engine you have.Since you dident say what kind of car you have, or the year, I cant tell you how to read the code.
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Old 02 Oct 2007, 06:48 pm
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Posts: 23

first 1985-95 have obd ecus and 96-up have obdii here is a link to the know how about ecus

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Old 02 Oct 2007, 06:52 pm
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Posts: 891

yes you will need a vtec ecu the other does not have the nessacarys to let the vtec engage and stay runingthis may or may not help you Content3Map Sensor4Crank Angle Sensor5Map Sensor6Coolent Temperature7Throttle Angle8TDC Position9No 1 Cylinder Position10Intake Air Temperature63Intake Air Temperature12Exhaust Gas Recirculation System13Atmosphere Pressure14Electronic Air Control15Ignition Output Signal16Fuel Injector17Vehicle Speed Sensor20Electronic Load Detector21VTEC Solenoid Valve (1.8L GSR)22VTEC Oil Pressure Switch (1.8L GSR)23Knock Sensor30TCM Signal A31TCM Signal B41O-2 Sensor Heater43Fuel Supply System45System Too Rich or Too Lean48Primary Heated O-2 Sensor54Crankshaft Speed Fluctuation Sensor61Primary O-2 Sensor Circuit63Secondary O-2 Sensor Circuit65Secondary O-2 Sensor Circuit67Catalyst System70Automatic Transaxle71-74Random Misfire80Exhaust Gas Recirculation86Engine Coolant Temperature Circuit90Evaporative Emission Control System Leak Detected91Fuel Tank Pressure Circuit92Evaporative Emission Control System Insufficient
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