Hey Richard. May we please know the make, model and year of you automobile. Also, is this a bolt-on issue or rewiring and grounding the two leads. This Huco fuel pump set do not seem to come with any documentation but that is because the installation isn't really suppose to be complex but yes may vary from one make & model to the other. Meanwhile, thanks for the additional details.
Signature: SA tech Q&A is a free question and answer site. If the answer/solution provided above does not help' please use the reply button below to request further assistance.