ECU technical help,

[sloth240]

well i have several sets of injectors and i grabbed some low impedance injectors thinking they were high impedance and now my car is runnng stupid rich. i think i fried the driver.

i have an enthalpy ecu

question- can i just get new chips from enthalpy, or can i fix the injector driver, or is the ecu trash now?

some one please let me know.

thanks, chris

[rivera01]

Well if you fried a driver (which is based off ecu protocol and a switch) I'm pretty sure your ecu is toast and you need a new one. Attach a noid light to the injector harness connector and check each one still flashes the noid light. If they do you are propably ok and just need to swap back to high impedance one's.

High and low impedance injectors run off differnet currents to the injectors. Low use an initial high current to actuate the injector and then changes to a lower constant current for pulse width time. High impedance use a constant low current to actuate them and for pulse with time. With this said, swapping to low impedance may have fried the switch in the ecu. So watching for a pulse from a noid light that flashes on and off at each injector connector, should be clarification of a toatsy ecu driver or not.

Repeated flash = Good

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