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Acura RSX Honda Integra. Manual - part 126

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DTC P1121:

YES

11-210

PGM-FI System

DTC Troubleshooting (cont’d)

TP Sensor Signal Lower Than

Expected
(2005-2006 models)

NOTE: Information marked with an asterisk ( ) applies
to K20Z1 engine.

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Open the throttle fully.

4. Check the TP SENSOR in the DATA LIST with the

HDS.

Go to step 8.

Go to step 5.

5. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

6. Test-drive the vehicle at 16 mph (25 km/h) or more,

and at 1,050 (1,300) rpm or more.

7. Monitor the OBD STATUS for DTC P1121 in the

DTCs MENU with the HDS.

Go to step 8.

If the screen indicates PASSED, intermittent

failure, system is OK at this time. Check for poor
connections or loose terminals at the TP sensor and
the ECM/PCM. If the screen indicates NOT
COMPLETED, go to step 5 and recheck.

8. Turn the ignition switch OFF.

9. Replace the throttle body, K20Z1 engine (see page

11-410), K20A3 engine (see page 11-411).

10. Turn the ignition switch ON (II).

11. Reset the ECM/PCM with the HDS.

12. Do the ECM/PCM idle learn procedure (see page

11-349).

13. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

14. Test-drive the vehicle at 16 mph (25 km/h) or more,

and at 1,050 (1,300) rpm or more.

15. Check for Temporary DTCs or DTCs with the HDS.

If DTC P1121 is indicated, check for poor

connections or loose terminals at the TP sensor and
the ECM/PCM, then go to step 1. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Go to step 16.

16. Monitor the OBD STATUS for DTC P1121 in the

DTCs MENU with the HDS.

Troubleshooting is complete.

If the screen indicates FAILED, check for poor

connections or loose terminals at the TP sensor and
the ECM/PCM, then go to step 1. If the screen
indicates NOT COMPLETED, go to step 13 and
recheck.

Is the thr ottle position less than 6.4 ( 4.2) degr ees
( REL) ( 28 ( 15) % ( REL)) f or 5 seconds?

Does the scr een indicate F AILED?

Ar e any T empor ar y DT Cs or DT Cs indicated?

Does the scr een indicate PASSED?

05/06/27 17:35:51 61S6M040_110_0210

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DTC P1122:

YES

11-211

TP Sensor Signal Higher Than

Expected
(2002-2004 models)

NOTE: Information marked with

1 applies to K20A3

engine;

2 applies to K20A2 engine.

1. Turn the ignition switch ON (II).

2. Check the throttle position with a scan tool or the

HDS.

Intermittent failure, system is OK at this

time.

Replace the throttle body, K20A2 engine

(see page 11-410), K20A3 engine (see page 11-411).

Is 12.6 %, 0.6 V

( 12.9 %, 0.6 V )

, or less

indicated when the thr ottle is f ully closed?

05/06/27 17:37:50 61S6M040_110_0211

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−

DTC P1122:

YES

11-212

PGM-FI System

DTC Troubleshooting (cont’d)

TP Sensor Signal Higher Than

Expected
(2005-2006 models)

NOTE: Information marked with an asterisk ( ) applies
to K20Z1 engine.

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

4. Check the TP SENSOR in the DATA LIST with the

HDS.

Go to step 8.

Go to step 5.

5. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

6. Test-drive the vehicle at 16 mph (25 km/h) or more,

and, at 1,050 (1,300) rpm or more.

7. Monitor the OBD STATUS for DTC P1122 in the

DTCs MENU with the HDS.

Go to step 8.

If the screen indicates PASSED, intermittent

failure, system is OK at this time. Check for poor
connections or loose terminals at the TP sensor and
the ECM/PCM. If the screen indicates NOT
COMPLETED, go to step 5 and recheck.

8. Turn the ignition switch OFF.

9. Replace the throttle body, K20Z1 engine (see page

11-410), K20A3 engine (see page 11-411).

10. Turn the ignition switch ON (II).

11. Reset the ECM/PCM with the HDS.

12. Do the ECM/PCM idle learn procedure (see page

11-349).

13. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

14. Test-drive the vehicle at 16 mph (25 km/h) or more,

and at 1,050 rpm or more.

15. Check for Temporary DTCs or DTCs with the HDS.

If DTC P1121 is indicated, check for poor

connections or loose terminals at the TP sensor and
the ECM/PCM, then go to step 1. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Go to step 16.

16. Monitor the OBD STATUS for DTC P1122 in the

DTCs MENU with the HDS.

Troubleshooting is complete.

If the screen indicates FAILED, check for poor

connections or loose terminals at the TP sensor and
the ECM/PCM, then go to step 1. If the screen
indicates NOT COMPLETED, go to step 13 and
recheck.

Is the thr ottle position less than 6.4 ( 4.2) degr ees
( REL) ( 28 ( 15) % ( REL)) f or 5 seconds?

Does the scr een indicate F AILED?

Ar e any T empor ar y DT Cs or DT Cs indicated?

Does the scr een indicate PASSED?

05/06/27 17:37:50 61S6M040_110_0212

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DTC P1128:

YES

11-213

MAP Sensor Circuit Lower Than

Expected
(2002-2004 models)

1. Turn the ignition switch ON (II).

2. Check the MAP with a scan tool or the HDS.

Intermittent failure, system is OK at this

time.

Replace the MAP sensor (see page 11-412).

Is 54.1 kPa ( 16.0 in.Hg, 406 mmHg), 1.6 V or
higher indicated?

05/06/27 17:37:50 61S6M040_110_0213

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