Fix known issues before troubleshooting for unknown issues. As for vac at idle, mine is a built motor but is around -9 usually. Post a thread so not to hijack this one though if you got more issueswhat is normal boost vacuum supposed to idle around? lately mines been fluctuating from -8.4ish to -7.8ish at idle and also getting p02187. Also notice a crack on the downpipe pre o2 sensor would this lead to both the p02187 and low vacuum issue ? or should i be looking into injectors ?
