intermittent check engine light / obd1 self-retrieval test - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 11-03-2010
Member
Thread Starter
 
Join Date: Mar 2008
Location: VA BCH, VA
Posts: 12
intermittent check engine light / obd1 self-retrieval test

I did this three times using a test light and got a constant light all three times; I know I should be getting flashes, break, flashes, break... representing each number. I am jumping the self test input to sig rtn, and then the test light on the self test output and the poss. battery terminal. advance auto and autozone do not carry the obd1 tester. ('93 model)

the reason I am testing this in the first place is because I have an intermittent CEL and when starting my engine cold it immediately jumps to around 1200-1500 rpm's and then dies immediately; second start no problems. In addition to that issue, while on my commute to work it randomly decides to lose power and I am lucky pushing 55 mph, then all of a sudden 70 mph is no problem, back and forth sporadically. about 4 months ago I had my spark plugs and pcv valve changed and started to notice a difference in performance (it has progressively gotten worse).

if anyone can offer any assistance in my situation, I would very much appreciate it.
Reply With Quote
  #2  
Old 11-04-2010
Member
Thread Starter
 
Join Date: Mar 2008
Location: VA BCH, VA
Posts: 12
update: I was able to get the codes, there was a problem with my setup (thanks youtube). The codes I got were:

15 - EEC permanent Read Only Memory (ROM) test failed.
95 - Fuel pump secondary circuit failure. The EEC senses infinite resistance to ground from the fuel pump on the Fuel Pump Monitor circuit.
39 - AXOD converter bypass clutch not applying properly.

I figured code 95 is the main concern, but not really sure where to start.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
A/C on during self test TheMatt06 General Technical & Electrical 0 08-03-2011 08:36 PM
OBD1 code 72 billkuk SOHC - 2.3L & 2.5L Lima Engines 0 05-10-2011 02:11 PM
does the 4wd system do a self check when truck turns on? ccernst Drivetrain Tech 5 10-03-2010 10:20 PM
Intermittent Check Engine Light tcandela08 SOHC - 2.3L & 2.5L Lima Engines 1 05-07-2010 11:11 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 02:20 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.