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Old 02-16-2009, 10:41 PM
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Default 85 sedan deville error code E26 and F11 and F48

85 sedan deville error code E26 and F11 and F48. How can I get these codes to go away? Plus the service now light comes on until I give it a little gas.
Thanks for any advice,
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Old 02-18-2009, 12:08 PM
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Get a factory service manual to trace and diagnose each code to repair the cause. You can disconnect the battery to erase any that are history codes, but until the reason is repaired, codes will come back.
2 1984 Eldos, 1991 Allante, 88 Allante (sold)
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Old 02-21-2009, 12:39 AM
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Default Your codes are as follows:

E26 - Shorted Throttle Switch Circuit

F11 A/C High Side Temperature Circuit Problem

F48 Very Low A/C Refrigerant Pressure Condition

I always suggest when a car is this age to note the codes and erase. Code E26 for example indicates a short condition which may or may not be a continuing problem. If you have a persistent code it should be attended to. The AC codes are obvious, you have a leak.

I also suggest making sure your gas cap is properly sealing, #1 cause of check engine light.
2006 DTS Performance - L37 32v Northstar NHP V8 292 HP - 1 of 1
1999 STS - L37 32v Northstar V8 300 HP
1998 Deville D'Elegance - LD8 32v Northstar V8 (Sold July 9, 2011 with 225,000 km)
1993 Fleetwood - L05 5.7 TBI V8 (Sold July 18, 2012 with 308,000 km)
1999 GMC Suburban SLT- 5.7 Vortec
1998 Olds 88 LS - Series II 3.8 V6
1973 Pontiac LeMans GT - 454 V8 1 of less than 5

Last edited by Katzmans Caddy; 02-21-2009 at 12:43 AM.
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Old 02-21-2009, 09:36 PM
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In earlier post you stated you scored FSM, have you got it yet?
It will be OK
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