Code 24 help
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Joined: Mar 2005
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Code 24 help
I did not get the shop book yet,only have my 82 10 days.I have a check engine light code 24 and code 42.The 42 is vss makes sense converter wont lock up I wired a switch between a and f on the connector behind the ash tray, I will have to sort this out speedo works fine. but the code 24 I see no info on the forum on this any help would be really great. Thanks you Guys have been helpfull
Melting Slicks
Joined: Jul 2005
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From: Aurora Ontario
I did not get the shop book yet,only have my 82 10 days.I have a check engine light code 24 and code 42.The 42 is vss makes sense converter wont lock up I wired a switch between a and f on the connector behind the ash tray, I will have to sort this out speedo works fine. but the code 24 I see no info on the forum on this any help would be really great. Thanks you Guys have been helpfull
Code 24, the speed sensor gerenates an electrical signal representative of the vehicles speed, and buffer amplifier amplifies and inverts this signal for the ECM.
Code 22 indicates that the speed signal is not being received by the ECM.
Code 42 is EST Monitoring. I don't have time to type this one.Its long. By reading it int has something to do with the EST tan bypass wire. This wire tells the ECM to electronically advance the timing when the engine is running. The wire runs from the distributor down the drivers side fo the engine near the oil pressure switch.
Check your connections for now. The EST wire and the plug at the ECM.
Follow the wires back to the passenger side of the distributor and see if they are broken. Take the cap and rotor off the distributor and see if the wires are broken inside,
Vehicle speed sensore seldomly go. Is your speedo acting wacky?
Jim
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JDP thanks for the reply
Well the speedo is acting kind of strange.When you take off the needle does not respond but slowly catches up (It is smooth and does not bounce)It is way off 7-9mph at 20 to 35 mph. when you reach highway speeds 60-70 80 mph it is pretty much dead on (strange)also the rear end gears have been changed (dont like like for gas mileage,)does 70 mph at about 2200 rpm.My old 82 did 4x the tach ---80 mph at 2000rpm. great on gas.Any ideas,Thank you so much for responding.
