Another update: as you have read above, I had P0505 and P1174 codes and after a lot of tracing, replaced the ICV and CCV, finally found that injector 4 was having a problem sealing. Removed the fuel rail, then injectors and found the O-rings on 3 and 4 were hard as rocks. Replaced the O-rings and the vacuum tree and all is well thus far and so far no codes have returned.
However, the issue that is happening (this is an automatic too) that when slowing to a stop the engine surges and then returns to normal idle. I cannot seem to find anything that can be the cause. All vacuum lines appear okay and it runs great, but this surge is a pain in the butt.
Any insight is greatly appreciated. |