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Why do you have to change fuel pump when you change to an alternator?
Wiki User
∙ 14y ago
Fuel Pump recives alectrical power from alternator, change in alternator will change the value of voltage & ampere in the ckt which in turn will change the rate of fuel to the MPFI system.
As a low cost measure , in a situation where fule pump is not to be changed but a change in alteranator is there, fuel pump needs to be calibrated w.r.t. top the desired metered fuel & with ECU in tandem sp that KMPL & Toruque & speed characterstics do not get disturbed.
Wiki User
∙ 14y ago
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