 CHT? Car runs great until warm |
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| hi4head |
 Jul 2 2006, 04:42 PM
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#1
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Member  Group: Members Posts: 69 Joined: 4-April 06 From: Lexington, NC Member No.: 5,819 Region Association: None  |
Hi folks,
My '73 2.0 starts and runs fine until it is warm. Then it really starts running rough. If I kick up the rpm's, it seems to help some, but not much. I've pulled a couple of plugs and they are somewhat sooty. I've disconnected the Temp Sensor II (CHT). When I connect my multimeter to the connector and touch ground, I get zero ohms. From what I've read, I was thinking that this should read 2000 - 3000 ohms when cold (albeit it is around 80 degrees in my garage). The sensor's connecting wire does not appear to be touching anything. If the sensor is bad, would this contribute to the car running rich? Thanks, Chris |
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Replies
| jk76.914 |
Jul 3 2006, 09:23 PM
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#2
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Senior Member Group: Members Posts: 809 Joined: 12-April 05 From: Massachusetts Member No.: 3,925 Region Association: North East States |
I don't see the 270 ohm resistor. It's supposed to be the first thing that the wire from the CHT sensor plugs into, and then the other end of the resistor plugs into the harness. It looks like your CHT is plugged directly into the harness. The resistor is cylindrical, about 2 inches long. Mine is green, with 270 ohm printed on it in white. Sorry no pictures.....
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Posts in this topic
hi4head CHT? Car runs great until warm Jul 2 2006, 04:42 PM
brownaar Mine did the same thing. My problem was the CHT h... Jul 2 2006, 04:48 PM Brad Roberts Do you have the 270ohm resister in place?
B Jul 2 2006, 04:50 PM hi4head I'll have to check on both points.
I managed ... Jul 2 2006, 07:40 PM Qarl Runs great when cold... poorly when warm....
Did ... Jul 2 2006, 07:48 PM Brad Roberts The resistor is easily visible inline with the har... Jul 2 2006, 08:20 PM hi4head Since I really don't know fully what I'm d... Jul 3 2006, 09:10 PM
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