Index Isuzu Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross - service repair manual 1999-2002 year
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6E–482 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS DTC P1514 - TPS-MAF Correlation Error (Cont'd) Step No Yes Value(s) Action 10 1. Disconnect the MAP sensor. signal at the MAP sensor harness connector. 3. Observe the MAP reading on the Tech 2. Is the MAP reading less than the specified value? (If no, — Go to Step 11 Go to Step 12 11 1. Check the MAP signal circuit between the PCM and MAP ground circuit. 2. If the MAP signal circuit is open or shorted, repair it as necessary. Was the MAP signal circuit open or shorted? — Verify repair Go to Step 13 12 Replace the MAP sensor. Is the action complete? — Verify repair — 13 Observe the TP angle reading on the Tech 2 while Does the TP angle increase steadily and evenly from Closed throttle TP sensor 1 =8 ∼ 10 % TP sensor 2 =90 ∼ 92 % Wide open throttle TP sensor 1 =90 ∼ 92 % TP sensor 2 =8 ∼ 10 % Refer to Diagnostic Aids Go to Step 14 14 1. Disconnect the TP sensor. Is the TP sensor reading near the specified value? 0V Go to Step 15 Go to Step 16 15 1. Connect a test light between the 5Volt reference circuit and the TP1 and TP2 sensor signal circuit at 2. Observe the TP sensor reading on the Tech2. Is the TP sensor reading near the specified value? 5V Go to Step 18 Go to Step 17 16 Check the following items; 1. TP1 and TP2 signal circuit for a short to voltage. resistance between the PCM and the TP sensor. 3. TP1 and TP2 sensor ground circuit for a poor connection. 4. If a problem is found, repair wiring harness as necessary. Was a problem found? — Verify repair Go to Step 19 |