Check Engine/ Dead Pedal - Page 2

fearnaut · 10-03-2008, 11:41 AM

99,24v auto .autozone will not check codes anymore in northern ca,but my cruise stopped working.the cruise light goes out when you set speed and will not come on again till you restart.vac is around 20in. no codes. replaced the ess,checked servo looks good and the lines and fitting also.break swithch seems ok?????????

Steveo24 · 10-03-2008, 04:54 PM

Well, my next step would be to change the fuel filter, check the air filter, coolant level, etc.. All the basics, if you cannot pull codes. Fuel filter ASAP, supposed to do them like every 5000 miles or so, so for the 20 or 30 bucks that it costs, I would definately do that first.

__________________
98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

weasel1088 · 10-03-2008, 05:51 PM

Quote:

Originally Posted by Steveo24

Well, my next step would be to change the fuel filter, check the air filter, coolant level, etc.. All the basics, if you cannot pull codes. Fuel filter ASAP, supposed to do them like every 5000 miles or so, so for the 20 or 30 bucks that it costs, I would definately do that first.

I bought a fuel filter so ill be doing that today.

I sucked it up and bought a scanner. autozone apparently doesnt do it anymore.

So my codes:

P1693
P0238- this one concerns me, i think it is a boost sensor reading too high? this might explain the sluggishness of the engine if something is wrong with the turbo?

Is this something i can fix?

Steveo24 · 10-03-2008, 09:21 PM

1693 always comes up to show there is another code stored in the JTEC module. However the 238 code is Map sensor voltage to high. That would explain the way it is running. Do a search on this forum on how to clean the MAP sensor, could be an easy fix, or test and if bad-replace-good luck

__________________
98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

weasel1088 · 10-04-2008, 09:17 AM

what if i unplug the map, reset the codes what will happen? i know i will get another code for the map but will it put me in the same limp mode im in now?

Steveo24 · 10-04-2008, 09:52 AM

Probably run the same, but I have seen some of the connections in the plug get fouled up, might be worth tryin.

__________________
98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

gauge · 11-03-2008, 08:26 AM

My 01 did the same thing on a trip once, but mine would eventually kick back in. My idle speed also went up to 1,000 rpms and the engine cooled 10 degrees. I ran the cruise this weekend and my idle speed went back up and I only got 12.8 mpg...been averaging 16??? I have 3.55 gears and cannot undertstand the mileage unless it is due to my Edge Comp being set at level 3 stage five...definitely won't be using that setting on the interstate any more.

weasel1088 · 11-03-2008, 01:23 PM

Turned out it was the map sensor. was about 100 bucks from the stealership but as soon as i replaced it, i was back at 100%

__________________
98.5 QCLB 4x4, 5spd, BHAF with silencer removed, 285's

BoBo69 · 11-07-2008, 12:04 PM

Mine throws a code for loss of throttle idle ref position, P0121.

I got a $40 reader from harbor freight, does the job.

To get pedel back I have to let my foot off all the way for a sec and then slowly push to the floor, let off again and I got pedal.

I guess it's the Fedex computer problem.

Steveo24 · 11-07-2008, 12:13 PM

BoBo, alot of times when the APPS sensor is out of adjustment it will throw the PO 121. Do a search on ApPS adjustment, this will likely fix your problem.

__________________
98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

BoBo69 · 11-07-2008, 12:43 PM

Thanks Steveo, I'll look for the adjustment info.

Jammin · 11-08-2008, 12:43 PM

I had this problem happen last week. Ran codes and it was the apps sensor. Well they wanted over $500 for the part. I took out the sensor, cleaned the plug, put die-electric greese on the connectors and put the old apps sensor back in. Cleared the codes and the truck runs great again. Saved myself $500

11-07-2008, 12:04 PM	#21 (permalink)
BoBo69 Newbie Join Date: Nov 2008 Posts: 3 BoBo69's Truck Pics	pedel pump Mine throws a code for loss of throttle idle ref position, P0121. I got a $40 reader from harbor freight, does the job. To get pedel back I have to let my foot off all the way for a sec and then slowly push to the floor, let off again and I got pedal. I guess it's the Fedex computer problem.

11-07-2008, 12:43 PM	#23 (permalink)
BoBo69 Newbie Join Date: Nov 2008 Posts: 3 BoBo69's Truck Pics	Thnx Thanks Steveo, I'll look for the adjustment info.

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10-03-2008, 11:41 AM	#13 (permalink)
fearnaut Newbie Join Date: Oct 2008 Posts: 1 fearnaut's Truck Pics	99,24v auto .autozone will not check codes anymore in northern ca,but my cruise stopped working.the cruise light goes out when you set speed and will not come on again till you restart.vac is around 20in. no codes. replaced the ess,checked servo looks good and the lines and fitting also.break swithch seems ok?????????

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10-03-2008, 04:54 PM	#14 (permalink)
Steveo24 Diesel Head Join Date: May 2007 Location: Valparaiso, Indiana Posts: 1,060 Steveo24's Truck Pics	Well, my next step would be to change the fuel filter, check the air filter, coolant level, etc.. All the basics, if you cannot pull codes. Fuel filter ASAP, supposed to do them like every 5000 miles or so, so for the 20 or 30 bucks that it costs, I would definately do that first. __________________ 98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

10-03-2008, 09:21 PM	#16 (permalink)
Steveo24 Diesel Head Join Date: May 2007 Location: Valparaiso, Indiana Posts: 1,060 Steveo24's Truck Pics	1693 always comes up to show there is another code stored in the JTEC module. However the 238 code is Map sensor voltage to high. That would explain the way it is running. Do a search on this forum on how to clean the MAP sensor, could be an easy fix, or test and if bad-replace-good luck __________________ 98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

10-04-2008, 09:17 AM	#17 (permalink)
weasel1088 Cummins Fan Join Date: Apr 2008 Posts: 66 weasel1088's Truck Pics	what if i unplug the map, reset the codes what will happen? i know i will get another code for the map but will it put me in the same limp mode im in now?

10-04-2008, 09:52 AM	#18 (permalink)
Steveo24 Diesel Head Join Date: May 2007 Location: Valparaiso, Indiana Posts: 1,060 Steveo24's Truck Pics	Probably run the same, but I have seen some of the connections in the plug get fouled up, might be worth tryin. __________________ 98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

11-03-2008, 08:26 AM	#19 (permalink)
gauge Newbie Join Date: Sep 2008 Posts: 3 gauge's Truck Pics	My 01 did the same thing on a trip once, but mine would eventually kick back in. My idle speed also went up to 1,000 rpms and the engine cooled 10 degrees. I ran the cruise this weekend and my idle speed went back up and I only got 12.8 mpg...been averaging 16??? I have 3.55 gears and cannot undertstand the mileage unless it is due to my Edge Comp being set at level 3 stage five...definitely won't be using that setting on the interstate any more.

11-03-2008, 01:23 PM	#20 (permalink)
weasel1088 Cummins Fan Join Date: Apr 2008 Posts: 66 weasel1088's Truck Pics	Turned out it was the map sensor. was about 100 bucks from the stealership but as soon as i replaced it, i was back at 100% __________________ 98.5 QCLB 4x4, 5spd, BHAF with silencer removed, 285's

11-07-2008, 12:13 PM	#22 (permalink)
Steveo24 Diesel Head Join Date: May 2007 Location: Valparaiso, Indiana Posts: 1,060 Steveo24's Truck Pics	BoBo, alot of times when the APPS sensor is out of adjustment it will throw the PO 121. Do a search on ApPS adjustment, this will likely fix your problem. __________________ 98.5 3500 2WD dually 4:10's lAuto Meter fuel, boost, pyro, and trans temp lOne piece headlights+ LED's l5 inch mitre stacks lHX 40 l150 horse Coaltrain sticks l.093 tubes l Smarty lEdge Comp HOT lStage 2 snow kit lBHAF lBD pusher pump lAmsoil, engine+diff

11-08-2008, 12:43 PM	#24 (permalink)
Jammin Newbie Join Date: Nov 2008 Posts: 3 Jammin's Truck Pics	I had this problem happen last week. Ran codes and it was the apps sensor. Well they wanted over $500 for the part. I took out the sensor, cleaned the plug, put die-electric greese on the connectors and put the old apps sensor back in. Cleared the codes and the truck runs great again. Saved myself $500