Question about Cadillac Eldorado
The PCM code PO139 current keeps coming up when I use Regular gas in my northstar
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: trouble codes
Trouble Code: P0139
O2 (B1 S2) Slow Response
Trouble Code Conditions:Engine started; vehicle driven at 20-55 mph with the throttle open for 2 minutes; ECT at more than 158ºF (70C); catalytic converter temperature is more than 1112F (600C); and EVAP purge is active. O2 Sensor signal voltage switches less than 16 times from lean to rich within 20 seconds during monitoring, or will compare the state of change between the front and rear O2 Sensors and if the differences are greater than a calibrated amount, the DTC will set. 3 good trips are required to turn off the MIL.
Trouble Code: P0344
Camshaft Position Sensor Circuit Intermittent
Trouble Code Conditions:Engine cranking or running; system voltage over 10.5v. The PCM detected an intermittent loss of the CMP Sensor signal during the period of 2.5 complete engine revolutions. The failure counter must reach 20 before this code matures and a code is set.
No Camshaft Position Sensor Circuit Failure
Trouble Code Conditions:Engine cranking or running, system voltage over 10v. The PCM detected CKP pulses without detecting any CMP Sensor pulses for 5 seconds or 2.5 engine revolutions.
Posted on Nov 05, 2008
Po48 is an EGR system malfunction in the PCM...powertrain control module AKA computer..brain....The EGR valve isnt opening when it should. Either it leaks or there is no vacuum supply or the passage is blocked with carbon
Posted on Nov 20, 2008
SOURCE: PCM unit
PCM is the standard automotive acronym for Powertrain Control Module, previously know as the ECM and ECU, in 1996 the term was standardized for the new OBD 2 emission control system.
Posted on Apr 29, 2009
SOURCE: 1999 pcm problem
I am not sure I understand your problem but I assume the truck is not running , no power to pcm ect. I have had jeeps sent to me after thousands of dollars have been pured into them and still wouldnt start. Change the CRANK SENSOR. This will 99% of the time fix this problem. When you go to the part store just make sure to give them the correct info. it is located on top of the transmission bell housing and is held in by 1 bolt most of the time it is a 10mm bolt . it is sometimes a pain but its on the drivers side top of bell housing . look at the new one to get idea of what it is. follow wire harness and unplug then take bolt out and remove sometimes you have to twist and pull out. put the new one in put bolt back and plug in. if it has a piece of felt on the tip leave it on it will come off its self . jeeps have a lot of pcm problems but the crank sensor can fool even the best mechanics making it look like a pcm problem. I take it you have not changed pcm's. if you do it will have to go to dealer to be programed and flashed in order to stay running. but hpoefully you havent changed pcm yet and go ahead and change that crank sensor asap
Posted on May 24, 2009
Tips for a great answer:
May 09, 2014 | 2000 Plymouth Neon
Nov 03, 2013 | Cars & Trucks
Nov 03, 2013 | 2003 Honda Odyssey
Jun 15, 2012 | Cars & Trucks
Feb 07, 2012 | Cars & Trucks
Aug 14, 2009 | 1998 Cadillac Eldorado
Mar 28, 2009 | 1998 Subaru Legacy
Mar 27, 2009 | 1994 Cadillac Eldorado
Nov 05, 2008 | 2005 Chrysler PT Cruiser
27 people viewed this question
Usually answered in minutes!