Hi, I could use some clear suggestions.
My 92 Buick road master station wagon with a 350 engine and TBI surges. This means I am going alone the highway at 55/60/65 and you can feel the car just slightly trying to go faster then slower then faster then slower. Nothing which has an effect on the speedometer or the tack. But I can feel it.
Combined with the above is the additional symptom. When first bringing the car up to highway speed; it hits about 55 then really surges. Bad. Feels like not enough fuel for the engine. I must floor the gas, then it clears up and all is ok from then on except for the previous mentioned symptoms.
Oh, there are NO error codes when I test for them.
I have changes the dist cap and rotor and am in the process of plugs and wires. I am trying to do 2 plugs a day ( have 6 to go). They are hell to replace. I have also retimed and set it to TDC.
My thoughts are running alone the lines of the Ignition coil ($16 us) or the injectors (2 at $35 each).
I have also considered the O2 sensor (but no error code) and the TPS (but again no error code).
Has anyone else had problems like this? What was your solution?
Thank You ---- Dan