code 43 with check engine light

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Russ - 08 May 2005 19:34 GMT

I have a 97 ram 1500 with the 5.9 gas motor, the check engine light came on
and I retrieved the code by on-off-on-off-on-off-on way and got 43. any
ideas to what may be causing it. It idles rough and is rough of the starts
from a stop. I first thought bad gas, cause my other car idled rough till I
put heet in and some better gas, did same with Ram but didn't help. Any help
would be appreciated. Thanks.

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TranSurgeon - 08 May 2005 19:52 GMT

probably an O2 sensor

get it scanned with a REAL scanner to make sure

> I have a 97 ram 1500 with the 5.9 gas motor, the check engine light came on
> and I retrieved the code by on-off-on-off-on-off-on way and got 43. any
> ideas to what may be causing it. It idles rough and is rough of the starts
> from a stop. I first thought bad gas, cause my other car idled rough till I
> put heet in and some better gas, did same with Ram but didn't help. Any help
> would be appreciated. Thanks.

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Tom Lawrence - 08 May 2005 21:30 GMT

> and I retrieved the code by on-off-on-off-on-off-on way and got 43. any
> ideas to what may be causing it.

Code 43 - "Peak primary circuit current not achieved within the maximum
dwell time".

There could be a lot of things that actually trip this code, but mostly
ignition-related. When's the last time the engine had a complete tune-up?
How old are the wires, particularly the coil wire? Check the 12V side of
the coil for corrosion on the connectors. It may also be time for a new
coil altogether (and if this is still the original coil, I'd just change it
out as a matter of course).

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