Possible Causes

Possible causes are:

• Connector or terminal malfunction
• EGR boost sensor malfunction
• Open circuit in Brown wire between EGR boost sensor 3-pin harness connector terminal "B" and PCM 104-pin harness connector terminal No. 91
• PCM malfunction
• Short to power circuit in Pink wire between EGR boost sensor 3-pin harness connector terminal "A" and PCM 104-pin harness connector terminal No. 34