 CHT? Car runs great until warm |
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| hi4head |
 Jul 2 2006, 04:42 PM
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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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| Brad Roberts |
Jul 2 2006, 08:20 PM
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#2
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
The resistor is easily visible inline with the harness and head temp sensor.
This typically adds fuel to the system. Basically it fools the system into thinking the engine is cold. B |
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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 hi4head Since I really don't know fully what I'm d... Jul 3 2006, 09:10 PM
jk76.914 I don't see the 270 ohm resistor. It's su... Jul 3 2006, 09:23 PM |
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