hammer mod

Tapping the injector pump on certain bolts to increase or decrease fuel to the injectors,so more power less power l believe.
 
Have to say don't think I would take a hammer to a high pressure fuel pump!
 
Hammer mod does work on these older cars, just alters the base setting of the quantity adjuster so allows more fuel to the engine. Remapping earlier cars is not so easy as they aren't mapped through the OBD you need to remove the ECU, Desolder the EEPROM, blow another map in it and then put the EEPROM back in the ECU.

Karl.
 

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