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<blockquote data-quote="Rleo6965" data-source="post: 1064238960" data-attributes="member: 135626"><p>I'm glad to see your post. You might help me solve also my problem that puzzling me.</p><p></p><p>But first. I will try to help you.</p><p></p><p>I think those 3 green stripe wire was from the Throttle Position Sensor of the carburator. This must be connected to the ECM ( computer ). </p><p></p><p>Upon starting engine ECM will not control the engine ( open loop mode ) when engine was cold. This was the reason that engine run have no problem. But when the engine reached the normal engine temperature. ECM will take over to control the engine ( close loop mode ). Since the 3 wire from Throttle Position Sensor from the carburator was not connect to the ECM. Engine control was erratic.</p><p></p><p>Shown below picture of carb and connection diagram of TPS wire. I hope its correct. You can ask your mechanic to confirm these. Colored circle in the schematic diagram designates the stripe color on green wire. Except for yellow color that should be your white stripe wire.</p><p></p><p></p><p>I have this mikuni electronic controlled 2 barrel carburator and not able to install in my 4G13 engine. Because I don't have the ECM or Electronic Control Module or ( computer box ). </p><p></p><p>May I know the the model number of your ECM? If possible. Can you show picture of the board inside the "metal box" and the model number pasted on casing. A friend of mine willing to swap his ECM for my stock 4G15 cylinder block. I just want to know if its the same with your ECM.</p><p></p><p>Can you show close up picture of the small white board standing in the middle of the board. My friends ECM white standing board small square components have have "no cover". I don't know if IC was burned or defective. or it's normal. Any guys, know the function of this small board?</p><p></p><p>Thanks . Hope I able to help you. And later you also help me.<img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/biggrin.gif" class="smilie" loading="lazy" alt=":biggrin:" title="Biggrin :biggrin:" data-shortname=":biggrin:" /></p></blockquote><p></p>
[QUOTE="Rleo6965, post: 1064238960, member: 135626"] I'm glad to see your post. You might help me solve also my problem that puzzling me. But first. I will try to help you. I think those 3 green stripe wire was from the Throttle Position Sensor of the carburator. This must be connected to the ECM ( computer ). Upon starting engine ECM will not control the engine ( open loop mode ) when engine was cold. This was the reason that engine run have no problem. But when the engine reached the normal engine temperature. ECM will take over to control the engine ( close loop mode ). Since the 3 wire from Throttle Position Sensor from the carburator was not connect to the ECM. Engine control was erratic. Shown below picture of carb and connection diagram of TPS wire. I hope its correct. You can ask your mechanic to confirm these. Colored circle in the schematic diagram designates the stripe color on green wire. Except for yellow color that should be your white stripe wire. I have this mikuni electronic controlled 2 barrel carburator and not able to install in my 4G13 engine. Because I don't have the ECM or Electronic Control Module or ( computer box ). May I know the the model number of your ECM? If possible. Can you show picture of the board inside the "metal box" and the model number pasted on casing. A friend of mine willing to swap his ECM for my stock 4G15 cylinder block. I just want to know if its the same with your ECM. Can you show close up picture of the small white board standing in the middle of the board. My friends ECM white standing board small square components have have "no cover". I don't know if IC was burned or defective. or it's normal. Any guys, know the function of this small board? Thanks . Hope I able to help you. And later you also help me.:biggrin: [/QUOTE]
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