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Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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EFI-355<br />

EFI-411<br />

EFI-414<br />

EFI-415<br />

EFI-422<br />

EFI-425<br />

EFI-432<br />

( Mass air flaw (MAF) sensor - incorrect signal<br />

Throttle position (TP) sensor<br />

Turbocharger (TC) pressure - control<br />

Manifold absolute pressure (MAP) sensor, TC system<br />

Motronic 4.4: Barometric pressure (BARO) sensor<br />

EMS 2000: Barometric Dressure IBARO) sensor<br />

Heated oxygen sensor (H02S) 2<br />

[ Engine control module (ECM) - overheating<br />

Probable cause<br />

- --<br />

MAF sensor, TP sensor<br />

Wiring, TP sensor<br />

Hose blocked, TCM wire (TC pressure reduction<br />

signal), wiring, MAF sensor, TC wastegate actuator1<br />

regulating valve<br />

Wiring, MAP sensor, BARO sensor<br />

Wiring, sensor supply, BARO sensor, AC pressure<br />

sensor, fuel tank pressure sensor, G-force sensor<br />

Wiring, BARO sensor<br />

EFI-433 I Knock sensor (KS) 2 Wiring, KS<br />

lntakelexhaust leak, uneven compression, fuel<br />

pressure, H02S<br />

Engine coolant blower motor, air supply blocked<br />

EFI-435 Heated oxygen sensor (H02S) 1 - slow response lntakelexhaust leak, uneven compression, fuel<br />

pressure, MAF sensor, heating inoperative, H02S<br />

EFI-436 I<br />

-<br />

Heated oxygen sensor (HOZS) 2 - compensation lntakelexhaust leak, uneven compression, fuel<br />

pressure, H02S 112<br />

EFI-442<br />

EFI-443<br />

Pulsed secondary air injection (PAIR) system - excessive<br />

flow detected<br />

Catalytic converter - efficiency below threshold<br />

PAlR valvelsolenoid, exhaust leak<br />

lntakelexhaust leak, uneven compression, fuel<br />

pressure, catalytic converter<br />

EFI-444 G-force sensor<br />

Wiring, sensor supply, AC pressure sensor, fuel<br />

tank pressure sensor, G-force sensor<br />

flow detected<br />

Wiring, PAlR pump relay<br />

PAlR valvelsolenoid, exhaust leak<br />

Wiring, PAlR solenoid<br />

PAlR valvelsolenoid, PAlR pumplrelay, hoseslpipes<br />

blocked, exhaust leak, PAIR pump wiring<br />

EFI-451<br />

EFI-452<br />

Cylinder I - misfire detected Spark plug, HT lead, distributor rotorlcap, moisture<br />

1 ingress, injectorlwiring, air leak, compression, head<br />

Cylinder 2 - misfire detected<br />

Cylinder 3 - misfire detected<br />

EFI-453 I<br />

EFI-454<br />

EFI-455<br />

Cylinder 4 - misfire detected<br />

Cylinder 5 - misfire detected<br />

gasket, low-tension wiring, repeated cold starts<br />

(flooding)<br />

Spark plug, HT lead, distributor rotorlcap, moisture<br />

ingress, injectorlwiring, air leak, compression, head<br />

gasket, low-tension wiring, repeated cold starts<br />

(flooding)<br />

Spark plug, HT lead, distributor rotorlcap, moisture<br />

ingress, injectorlwiring, air leak, compression, head<br />

gasket, low-tension wiring, repeated cold starts<br />

(flooding)<br />

Spark plug, HT lead, distributor rotorlcap, moisture<br />

ingress, injectorlwiring, air leak, compression, head<br />

gasket, low-tension wiring, repeated cold starts<br />

(flooding)<br />

Spark plug, HT lead, distributor rotorlcap, moisture<br />

ingress, injectorlwiring, air leak, compression, head<br />

gasket, low-tension wiring, repeated cold starts<br />

(flooding)<br />

Engine management<br />

797

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