I don t understand how low coolant or air in the coolant would cause a surging idle, but the coolant level is fine and the coolant recovery system is at the proper level. Does the 1990 Accord have an IAC?
I ll check the EGR value this evening.
More detail: The car idle goes from 800 to 2000 rpm as if someone was stomping on the gas and quickly pulling their foot back off. As the car warms up, it will only surge to about 1600 rpm, then 1400 rpm and slowly settle down at about 900rpm. This process take about five minutes, remember I live in Texas, so it never gets real cold here.
Thursday, November 8th, 2007 AT 1:08 PM