Jumpy engine

try cleaning throttle plate on both sides and iac hole with choke cleaner then check fuel pressure with a gauge auto parts rent it.

If you decide to check the fuel press yourself, here is a link to one of the articles from this site that explains and shows you how to the fuel pressures yourself.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

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