Running rich 240

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xstanger
Posts: 40
Joined: Mon Nov 07, 2005 5:37 pm
Car: 94 240 conv, 91 240 coupe, 90 coupe, 89 hatch

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Car blows black smoke and fouls out new plugs with gas in no time. Any ideas of what the problem may be? 1990 240 car.

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kouki munster
Posts: 2195
Joined: Wed Nov 09, 2005 6:13 pm
Car: 97 base 240
Location: Anderson, SC

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Sounds like a bad injector(s) or a fpr.
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JNM240
Posts: 1375
Joined: Wed Jul 31, 2002 2:45 pm
Car: 90 Coupe, 90 Hatch (CA18DET)
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also check coolant temp sensor and its connector.
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xstanger
Posts: 40
Joined: Mon Nov 07, 2005 5:37 pm
Car: 94 240 conv, 91 240 coupe, 90 coupe, 89 hatch

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Where is this sensor located? Thanks
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180fan
Posts: 7799
Joined: Sat Dec 14, 2002 12:16 pm
Car: 89 fastback

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Look for the lower radiator hose. it'll take you to the thermo housing. Behind the thermo, you should see two sensors, one with a single wire and the other with two wires. The CTS is the one with two wires.
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ACESXX
Posts: 527
Joined: Thu Apr 20, 2006 12:15 pm

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Pour some gas treatment and injector cleaner together and let's see what happens it worked with my car!
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