Factory Service Manual KA24DE Idle issue and Timing issue

[m6ride]

I have 2003 Nissan Frontier 2.4L ; HIGH Idle Issue

From the Factory Service Manual, under "I"

IATS - Wiring diagram . EC-151, EC-181, EC-738, EC-
1346
Identification ..................................................... MTC-5
Identification plate .............................................. GI-45
Idle mixture ratio .................. EC-35, EC-607, EC-1210
Idle speed ............................ EC-35, EC-607, EC-1210
IGN/SG - Wiring diagram EC-536, EC-1140, EC-1715
Ignition timing ...................... EC-35, EC-607, EC-1210

Ignition timing ...................... EC-35, EC-607, EC-1210

I am trying to determine how to access the above in BOLD, and to print it out; possibly on this post is good. Any help ?

Something from the FSM that speaks to removing the TPS harness adjust the idle to 650 rpms; then reconnect harness and the idle recovers to 700 rpms (target), assuming no other issues.

Any and all help appreciated. THANKS

[centralcoaster33]

Welcome to NICO Club!

The setting of your idle and timing are very similar to how I do it on the 240sx.

Fully warm up the engine. Shut engine off. Disconnect the TPS harness connector.

Attach timing light. Start engine and set timing to 20 degrees BTDC by turning the distributor. Check the idle speed. It should read 650-700 RPM; If not, adjust the idle screw until you get there. The idle screw is located on the passenger’s side of the engine near the firewall below the intake manifold. Stop the engine. Reconnect the TPS harness connector. Start engine. The idle speed should now be 750 RPM.

That’s all there’s to it. The info is on maybe page 4 of the FSM forward chapter (the very beginning of the book called FWD in the links). 750 is your idle speed. 20 degrees is your timing at idle. With the TPS unplugged, it should idle around 700 and afterwards, when you plug it back in, the computer will raise it to about 750.

All FSM chapters are found at this link:
http://www.nicoclub.com/FSM/Frontier/2003_Frontier/

[m6ride]

Thank you for the above info, but i need it straight from Nissan's FSM, if possible, but I can't get it to print for me

Frontier - 2003_Frontier - idx ...... F S Manuals 2003 KA24DE

FOR: Frontier - 2003_Frontier - idx ...... F S Manuals 2003 Frontier KA24DE CHECKING TPS & ADJUSTING IDLE

from FSM " IDX " file:

HOW DO I get a print out for the following six (6) files, in bold ?


Idle mixture ratio .................. EC-35, EC-607, EC-1210

Ignition timing ...................... EC-35, EC-607, EC-1210

If you can copy and paste the info on here, please do so; also please send me a private message or email with the information; I need it urgently - THANKS

and/or call me

9 zero 1 - 7 five 3 - 1 one 3 0

JW

[centralcoaster33]

Sorry, I was unable to accommodate the urgency request. Maybe you figured out how to print on your own since your posting. I'm not sure I understand your issue. It sounds like you have a printer problem if you can't seem to print pages from a PDF document. And if you can't print those, I'm not sure how you'll print these either... anyway, I have cut and pasted from the three pages you reference above and the text is similar in all three:

EC-35 (body of text only)
BASIC SERVICE PROCEDURE PFP:00018
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment UBS0058J
PREPARATION
● Make sure that the following parts are in good order.
– Battery
– Ignition system
– Engine oil and coolant levels
– Fuses
– ECM harness connector
– Vacuum hoses
– Air intake system
(Oil filler cap, oil level gauge, etc.)
– Fuel pressure
– Engine compression
– EGR valve operation
– Throttle valve
– EVAP system
● On models equipped with air conditioner, checks should be carried out while the air conditioner is
“OFF”.
● On models equipped with automatic transmission, when checking idle speed, ignition timing and
mixture ratio, checks should be carried out while shift lever is in “P” or “N” position.
● When measuring “CO” percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
● Turn off headlamps, heater blower.
● Keep front wheels pointed straight ahead.

EC-607 (body of text only)
BASIC SERVICE PROCEDURE PFP:00018
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment UBS007HT
PREPARATION
1. Make sure that the following parts are in good order.
– Battery
– Ignition system
– Engine oil and coolant levels
– Fuses
– ECM harness connector
– Vacuum hoses
– Air intake system
(Oil filler cap, oil level gauge, etc.)
– Fuel pressure
– Engine compression
– Throttle valve
– Evaporative emission system
2. On air conditioner equipped models, checks should be carried out while the air conditioner is OFF.
3. On automatic transmission equipped models, when checking idle rpm, ignition timing and mixture ratio,
checks should be carried out while shift lever is in “N” position.
4. When measuring “CO” percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
5. Turn off headlamps, heater blower, rear defogger.
6. Keep front wheels pointed straight ahead.
7. Make the check after the cooling fan has stopped.

EC-1210 (body of text only)
BASIC SERVICE PROCEDURE PFP:00018
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment UBS005WL
PREPARATION
1. Make sure that the following parts are in good order.
– Battery
– Ignition system
– Engine oil and coolant levels
– Fuses
– ECM harness connector
– Vacuum hoses
– Air intake system
(Oil filler cap, oil level gauge, etc.)
– Fuel pressure
– Engine compression
– Throttle valve
– Evaporative emission system
2. On air conditioner equipped models, checks should be carried out while the air conditioner is OFF.
3. On automatic transmission equipped models, when checking idle rpm, ignition timing and mixture ratio,
checks should be carried out while shift lever is in “N” position.
4. When measuring “CO” percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
5. Turn off headlamps, heater blower, rear defogger.
6. Keep front wheels pointed straight ahead.
7. Make the check after the cooling fan has stopped.

[m6ride]

centralcoaster33; thanks for posting what you did. I was looking for the following information that you had posted - only I need it directly from the fsm

"Attach timing light. Start engine and set timing to 20 degrees BTDC by turning the distributor.

Check the idle speed. It should read 650-700 RPM;

If not, adjust the idle screw until you get there. The idle screw is located on the passenger’s side of the engine near the firewall below the intake manifold.

Stop the engine.

Reconnect the TPS harness connector.

Restart engine. The idle speed should now be 750 RPM."

This (below) is what I want to be printed on here (copy & paste), in case you can locate it; when I click on it it does nothing.

The info is on maybe page 4 of the FSM forward chapter (the very beginning of the book called FWD in the links). 750 is your idle speed. 20 degrees is your timing at idle. With the TPS unplugged, it should idle around 700 and afterwards, when you plug it back in, the computer will raise it to about 750."

[m6ride]

centralcoaster33, I found what I needed, thansk to you, VERY much. I'll post it below:

Engine KA24DE
Classification Gasoline
Cylinder arrangement In-line 4
Displacement 2,389 cm3 (145.78 cu in)
Bore and stroke 89 x 96 mm (3.50 x 3.78 in)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings Compression 2
Oil 1
Number of main bearings 5
Compression ratio 9.2
Cap relief pressure Standard kPa (kg/cm2, psi) 78 - 98 (0.8 - 1.0, 11 - 14)
Limit kPa (kg/cm2, psi) 59 (0.6, 9)
Leakage test pressure kPa (kg/cm2, psi) 157 (1.6, 23)
Oil drain plug tightening specification 29.4 - 39.2 N·m (3.0 - 4.0 kg-m, 21.69 -28.91 lb-ft)

Base idle speed*1 rpm No-load*3 (in “P” or “N” position) 750±50 <<<<<<<<<<<

Target idle speed*2 rpm No-load*3 (in “P” or “N” position) 800±50

Air conditioner: ON rpm In “P” or “N” position 875 or more

Ignition timing*1 In “P” or “N” position 20°±2° BTDC <<<<<<<<<<<<<<

[centralcoaster33]

Awesome! Glad you got what you were looking for.