ok i tried everything about the ect sensor circut high

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Mar 4, 2007 | 08:17 PM

Travose21

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ok i tried everything about the ect sensor circut high

I pulled out the computer and checked the wires. I dont have a broken wire all three of them have fire. is my next step is to get a new computer right. if not let me know what should i do. if so do anyone have a 98 six speed computer they wanna sell.

Mar 4, 2007 | 08:33 PM

2xLS1

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From: Warr Acres, OK

Explain what you mean by have fire.

Mar 5, 2007 | 10:19 AM

Travose21

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when the man who do all of my work put the test voltage on them and all three wires had a good connection from the computer to the sensor wire, so it was not a bad wire. he said its gotta be in the computer

Mar 5, 2007 | 10:50 AM

2xLS1

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From: Warr Acres, OK

Find a new man do do your work. All 3 wires do not go to the computer. It is a simple voltage divider circuit. Pull the plug on the sensor and turn the key on. With a voltmeter with the - lead on a good ground, probe the connector terminal with the yellow wire with the + lead. You should have 5V. Probe the connector terminal with the brown wire with the + lead. Should have 0V. Reconnect the plug to the sensor. With a small pin pierce the insulation on the same 2 wires and measure the voltage again. The brown wire should still have 0V and the yellow wire should have voltage more than 0V and less than 5V, depending on the temperature of the sensor. Do these tests and post what you find. http://www.gearchatter.com/si/218500.png

Mar 5, 2007 | 10:58 AM

Travose21

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ok one more question. i have 2002 heads on a 1998 car and the 2002 have two wires that plug into the sensor and 1998 have three will that make a difference.

Mar 5, 2007 | 11:01 AM

Travose21

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thats the same table he used and i dont know what he did but I will ask him. http://www.gearchatter.com/si/218500.png he used this.

Mar 5, 2007 | 11:03 AM

2xLS1

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From: Warr Acres, OK

Nice little detail to leave out. You need to use the sensor that matches the wiring harness and computer. If the man who do all your work doesn't understand that, you really need to find someone new.