On my 90 firbird 3.1 V6 it idles rough after warm up but drives in the higher rpms fine has a little surging while driving. But bad gas milage.I checked all vacum lines. Nothing leaking.I checked timing and it was at 16 before I adjusted to 10 btdc like book says with wire uncliped but when I reconect wire the timing jumps back up to 16 to 20 before tdc and surges between 16 and 20.I took off my egr and sprayed it out but no difference any ideas?
have the same problem?
Sunday, December 26th, 2010 AT 9:50 PM