Fault Code 26-TBI


Notes:  For single-point injection engines only

Description:  Peak injector current has not been reached
Power loss light:  Off
Limp-in mode:  None

Possible Causes

Bad connection or wiring - Check the wiring and connections to the fuel injector and the power module (or SMEC) and the injector contol lines between the logic module and power module.  Clean and regrease any corroded connectors with dielectric grease and repair any shorts.

Fuel injector failure - Check the resistance of the injector coil. It should be about ?? ohms.  If it is much higher than this (or open circuit), the injector must be replaced.

Injector driver transistor failure - Check the injector signal coming from the power module (or SMEC).  It should rise to about 12V when the injector is off and drop close to 0V when the injector is on.  If it is out of spec, you may need to replace the power module.

Diagnostic Method

Trigger Parameters

- Diagnostic transitor output voltage did not reach full voltage when the injector was turned on

Results If Component Fails

Fault code 26 is stored.
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This page is maintained by Russell W. Knize and was last updated 08/28/98. Comments? Questions? Send email.

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