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- 23 Feb 2019, 23:11
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Re: Two replacement ETMs installed in last 10k miles. Still surging?
P1238 = ECM-6806 Turbocharger (TC) control system flow fault. Flow too low or too high. Permanent/Intermittent fault Diagnostic trouble code (DTC) information Condition If engine speed (RPM) is above 3500 rpm and the engine is operating at a high load, the control signal to the turbocharger (TC) con...