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6E–424 6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS Mass Air Flow, TP sensor 1, TP sensor 2 display on the D Plugged intake air duct or filter element D A wide - open throttle acceleration from a stop should A change in the display will indicate the location of If it is determined that the DTC occurs intermittently, DTC P1514 - TPS-MAF Correlation Error
Step Action Value(s) Yes No 1 Was the “On-Board (OBD) System Check” performed? — Go to Step 2 Go to OBD System Check 2 Was the “Electric Throttle Control (ETC) System — Go to Step 3 Go to ETC System Check 3 1. Ignition “ON,” engine “OFF.” conditions as noted. 4. Using a Tech 2, monitor “DTC” info for DTC P1514. Does the Tech 2 indicate DTC P1514 failed this — Go to Step 4 Check the procedure. Refer to Diagnostic Aids 4 1. Start the engine. display on the Tech 2. Is the “MAF Frequency” below the specified value? 3 ∼ 7 g/s Go to Step 5 Go to Step 8 5 1. Ignition “OFF.” Does the Tech 2 indicate a “MAF Frequency” at the 0g/s Go to Step 6 Go to Step 7 6 Replace the MAF sensor. Is the action complete? — Verify repair — 7 1. Check the MAF harness for incorrect routing near high voltage components (solenoids, relays, 2. If incorrect routing is found, correct the harness routing. Was a problem found? — Verify repair Go to Step 8 8 1. With the engine idling, monitor “MAF Frequency.” display on the Tech 2. 2. Quickly snap open throttle to wide open throttle while under a road load and record value. Does the Tech 2 indicate a “MAF Frequency” at 3 ∼ 7 g/s Go to Step 6 Go to Step 9 9 1. Ignition“ON”, engine not running. Is the MAP reading less than the specified value? 100 kPa Go to Step 10 Go to Step 13 |