P1404 Code

gtate · 10-14-2005, 11:06 AM

My 1998 Chevy K1500 truck shows "Service Engine Soon" intermittantly and gives a P1404 code - Aux. Emissions Control. What needs fixing?

Moostang · 10-14-2005, 12:59 PM

I just did a quick search around, it could possibly be your EGR. You may want to check that is hooked up correctly and functioning.

chevyguy · 10-14-2005, 05:19 PM

Thats a Great place to start.

gtate · 10-19-2005, 04:13 AM

I cleaned the carb & EGR riser tube (?) inside the carb, but "Service Engine Light" came back on again yesterday. I'm not sure where to look for EGR hook-up as suggested by 'Moostang'

Moostang · 10-19-2005, 05:42 AM

Well I was more thinking that the EGR had everything connected properly, like the vaccum line, any electrical type connection and it is screwed down tight.

gtate · 11-05-2005, 08:53 AM

This "Service Engine Soon" light comes on like clock work every time I drive about 40 miles on open highway. Goes out after three engine restarts. Doesn't come on just driving short trips around town. Maybe the P1404 code I got just needs to be cleared out of memory - is there a way I can do that without having to take it to Chev. dealer??

mrjohnwayne · 11-05-2005, 06:06 PM

if you know how to use an obd II scanner, Oreilly's usually has one to loan. If you know the guys pretty well they'll usually let you borrow it in the parking lot without have to put down a huge deposit

wojeepster · 11-18-2005, 08:42 PM

the reason it only comes on when you take the long trip is that egr is only energized in high gear part throttle to lower combustion temperature and there by lowers oxides of nitrogen. When you drive around town it never gets energized.

chevyguy · 11-18-2005, 09:08 PM

What he said. It wont come on during a short trip at low speeds

gtate · 11-28-2005, 06:59 PM

Does the 'jeepster' in your name imply you have a Jeepster - my first car was a 1949 model.

10-14-2005, 11:06 AM	#1
gtate Junior Member Join Date: Oct 2005 Location: Central New York Posts: 6	P1404 Code My 1998 Chevy K1500 truck shows "Service Engine Soon" intermittantly and gives a P1404 code - Aux. Emissions Control. What needs fixing?

10-14-2005, 12:59 PM	#2
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,377	I just did a quick search around, it could possibly be your EGR. You may want to check that is hooked up correctly and functioning. __________________ MEOW!! http://moostangproductions.com

10-14-2005, 05:19 PM	#3
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,160	Thats a Great place to start. __________________ When i die, i dont want to walk gracefully thu the pearly gates and turn in a unused body. i want to go sliding thru sideways and turn in a body that has been completely used up.

10-19-2005, 05:42 AM	#5
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,377	Well I was more thinking that the EGR had everything connected properly, like the vaccum line, any electrical type connection and it is screwed down tight. __________________ MEOW!! http://moostangproductions.com

11-05-2005, 06:06 PM	#7
mrjohnwayne Moderator Join Date: Apr 2005 Location: Texas Posts: 3,220	if you know how to use an obd II scanner, Oreilly's usually has one to loan. If you know the guys pretty well they'll usually let you borrow it in the parking lot without have to put down a huge deposit __________________ John Wayne 2000 F-350 7.3L Powerstroke 4x4

10-19-2005, 04:13 AM	#4
gtate Junior Member Join Date: Oct 2005 Location: Central New York Posts: 6	I cleaned the carb & EGR riser tube (?) inside the carb, but "Service Engine Light" came back on again yesterday. I'm not sure where to look for EGR hook-up as suggested by 'Moostang'

11-05-2005, 08:53 AM	#6
gtate Junior Member Join Date: Oct 2005 Location: Central New York Posts: 6	This "Service Engine Soon" light comes on like clock work every time I drive about 40 miles on open highway. Goes out after three engine restarts. Doesn't come on just driving short trips around town. Maybe the P1404 code I got just needs to be cleared out of memory - is there a way I can do that without having to take it to Chev. dealer??

11-18-2005, 08:42 PM	#8
wojeepster Senior Member Join Date: Nov 2005 Posts: 92	the reason it only comes on when you take the long trip is that egr is only energized in high gear part throttle to lower combustion temperature and there by lowers oxides of nitrogen. When you drive around town it never gets energized.

11-18-2005, 09:08 PM	#9
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,160	What he said. It wont come on during a short trip at low speeds __________________ When i die, i dont want to walk gracefully thu the pearly gates and turn in a unused body. i want to go sliding thru sideways and turn in a body that has been completely used up.

11-28-2005, 06:59 PM	#10
gtate Junior Member Join Date: Oct 2005 Location: Central New York Posts: 6	Does the 'jeepster' in your name imply you have a Jeepster - my first car was a 1949 model.

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