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View Full Version : 1993 Honda Del Sol check engine light code 43, what causes this?

deep67
Oct 23, 2011, 10:50 PM
Can a MAF or a MAP cause the check engine code 43 on a 1993 Honda
Del Sol SI?
TxGreaseMonkey
Oct 24, 2011, 05:30 AM
43 Fuel supply system or heated oxygen sensor circuit
CaptainRich
Oct 24, 2011, 11:27 AM
The fault will require pinpoint diagnostics by a tech on the scene. The problem could be incorrect fuel delivery, a faulty sensor or a faulty PCM/ECU.