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

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1 i, 5: .I Engine managementltransmission<br />

Model: 323 l,3/l,6Il,8/2,O (BJ) 6261Estate I,8/2,O (GFIGW)<br />

MX-5 1,611,8<br />

<strong>Trouble</strong> code identification<br />

EOBD<br />

type<br />

PO<br />

PI100<br />

PI101<br />

<strong>Fault</strong> location<br />

I Refer to EOBD trouble code table<br />

Mass air flow (MAF) sensor - circuit intermittent<br />

Mass air flow (MAF) sensor - circuit intermittent<br />

I<br />

Probable cause<br />

-- --<br />

Mass air flow (MAF) se&or/throttle position (TP) poorconnect=, MAF sensor, TP sensor<br />

signal incompatibility, lower than expected<br />

Mass air flow (MAF) sensorlthrottle position (TP) sensor - Wiring, poor connection, MAF sensor, TP sensor<br />

signal incompatibility, higher than expected<br />

PI110 I Intake air temperature (IAT) sensor 2 I Wiring, IAT sensor<br />

PI112<br />

PI113<br />

Intake air temperature (IAT) sensor - circuit intermittent<br />

Intake air temperature (IAT) sensor 2<br />

Engine coolant temperature (ECT) sensor - circuit<br />

intermittent<br />

-<br />

Wiring, MAF sensor<br />

Wiring, MAF sensor<br />

Wiring, IAT sensor<br />

Wiring, IAT sensor<br />

Wiring, ECT sensor<br />

PI120 I Throttle position (TP) sensor - low input I Wiring short to earth, TP sensor<br />

PI122<br />

Throttle position (TP) sensor - signal low<br />

PI123 I Throttle position (TP) sensor - signal high I Wiring short to positive, TP sensor, ECM<br />

PI123 I Throttle position (TP) sensor - stuck open 1 Wiring, TP sensor, ECM<br />

PI125 ( Throttle position (TP) sensor - circuit intermittent I Wiring, TP sensor<br />

PI130<br />

Fuel trim (FT) - control limit exceeded<br />

Heated oxygen sensor (H02S) - low voltage<br />

Heated oxygen sensor (H02S) - high voltage<br />

Heated oxygen sensor (H02S) - incorrect signal<br />

Oxygen sensor (02S)lheated oxygen sensor (H02S),<br />

bank 2 - incorrect signal<br />

-- - -<br />

Wiring open circuitlshort to earth, poor connection,<br />

TP sensor, ECM<br />

lntakelexhaust leak, fuel pressurelpump, EVAPIEGR<br />

system, wiring, H02S<br />

lntakelexhaust leak, fuel pressure low, hose<br />

connection, HO2Siwiring short to earth, injector(s),<br />

MAF sensorlwiring<br />

lntakelexhaust blockage, fuel pressure high, EVAPl<br />

EGR system, HO2Siwiring short to positive,<br />

injector(s), MAF sensor<br />

lntake leak, fuel pressurelpump, wiring, 02SIH02S,<br />

injector(s), EVAP canister purge valve, ignition coil,<br />

low compression<br />

Intake leak, fuel pressureipump, wiring, 02SIH02S,<br />

injector(s), ECT sensor, MAF sensor, spark plugs<br />

PI182 I Fuel shut-off solenoid I Wiring, fuel shut-off solenoid<br />

- -<br />

PI189<br />

PI190<br />

- -- - - -<br />

Fuel injection pump positionispeed sensor<br />

Module coding plug<br />

PI 195 I Barometric pressure (BARO) sensor I Wiring, BAR0 sensor, ECM<br />

PI196 ( Ignition switch, start signal - circuit malfunction I Wiring, starter motor<br />

PI 221<br />

PI226<br />

PI250<br />

Traction control system (TCS) - malfunction<br />

Fuel quantity adjuster position sensor - circuit malfunction<br />

Fuel pressure regulator control solenoid - circuit<br />

malfunction<br />

Wiring, fuel injection pump speed sensor<br />

Wiring, module coding plug<br />

PI252 1 Fuel pressure regulator control solenoid 2 ( Wiring, fuel pressure regulator control solenoid<br />

Fuel quantity adjuster position sensor - range1<br />

performance problem<br />

Fuel quantity adjuster control module - circuit malfunction<br />

Wiring, TCS malfunction<br />

Wiring, fuel qantity adjuster position sensor<br />

Wiring, fuel pressure regulator control solenoid<br />

Wiring, fuel qantity adjuster position sensor<br />

Wiring, fuel qantity adjuster control module

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