Getting P0171 and P0174 with edelbrock SC
Hi guys, just wondering if anyone else has had this problem. ....I bought this car with 15k miles and had the sc. It's at 18k now and am getting codes. Only thing I've done is install zl1 as a long shot to fix. I'm thinking of changing out intake manifold gaskets when I do injectors and fuel rail mod....I logged it with hp tuners. Things are fine for awhile then just get stupid on long trims. Been years since I tuned anything so not real sure what I'm looking at yet..
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