air intake problem
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
I have an Actron CP 9015 code scanner for my Fords. Call Autozone/Napa/Pep Boys etc. One of these places should have it for only about 35 bucks. It will come with an XLNT instruction manual & pulling the codes with it is a VERY SIMPLE 2 minute job. If you want more info check out this link www.actron.com & click on sunpro
Senior User
Joined: Oct 2003
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From: Connecticut
Hi again 93rangerg,
I have a EEC-IV system on my 90' + you have a OBD-II system on your 93'. My manual dosen't cover your testing procedures...sorry!
But you'll need a diagnostic scanner to perform your testing. Check around! Some auto stores will do code pulling for free!
I have a EEC-IV system on my 90' + you have a OBD-II system on your 93'. My manual dosen't cover your testing procedures...sorry!
But you'll need a diagnostic scanner to perform your testing. Check around! Some auto stores will do code pulling for free!
Last edited by wolfen; Nov 15, 2003 at 05:52 PM.
Freshman User
Joined: Nov 2003
Posts: 41
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From: FL
If you have the Haynes manual 36071, the information for pulling codes is in chapter 6, starts on page 2 (Obtaining codes). Also Haynes prints a manual dedicated to nothing but how to pull codes from most cars/trucks, but I do not have one (yet).
Good luck
Good luck
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New User
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This seems like a stupid question but, how do I clean my MAF sensor? I have that part of the tube seperated from the filter on one site & from the tube on the other, and what I see inside it is a little tube running it's length with 2 little exposed wires inside it. Do I just find pipe cleaners and wipe the wires down? My repair manual doesn't mention cleaning it. Oh, and there are a few safety hex screws holding it together. Unfortunately I don't have a screwdriver that can undo those.
Senior User
Joined: Oct 2003
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From: Connecticut
93rangerg,
goto:
https://www.ford-trucks.com/forums/s...hreadid=167634
This seems like a stupid question but, how do I clean my MAF sensor?
https://www.ford-trucks.com/forums/s...hreadid=167634
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
Check out this link and click on "engine pinging" Xlnt instructions for cleaning the MAF. DO NOT clean it with a pipe cleaner. www.glue.umd.edu/~singletn/exp.html
Freshman User
Joined: Nov 2003
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From: FL
Unless someone with more experience suggests otherwise I would limit the cleaning to just a little spray contact cleaner (safe for use with electrical equipment) so as not to damage the wires, I'm sure they are very sensitive.
Post Fiend
Joined: Jan 2003
Posts: 9,748
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From: Connecticut
1993 Rangers are EEC-IV. You can pull codes from a '93 Ranger by following the instructions here:
Pulling EEC-IV Codes
Mass Air Flow Sensor cleaning information can be found here: Cleaning Your MAF
Pulling EEC-IV Codes
Mass Air Flow Sensor cleaning information can be found here: Cleaning Your MAF
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Ok, I pulled the codes on it.
I got a continuous memory error 123 - Throttle Position Sensor voltage too high,
and a running test error 172 - Heated Exhaust Gas Oxygen sensor indicates lean bank #1.
Any idea what to do to fix this?
I got a continuous memory error 123 - Throttle Position Sensor voltage too high,
and a running test error 172 - Heated Exhaust Gas Oxygen sensor indicates lean bank #1.
Any idea what to do to fix this?
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
I think the TPS code is pretty straight forward, it's either putting out the correct voltages (approx 1 volt at idle up to 5 volts at full throttle) or it isnt. If it was me I would replace the TPS & see if the O-2 code goes away. With higher than normal TPS voltage it would seem that you would get a rich condition, not lean, but I could be wrong. I think a TPS is about 45 bucks at Napa.
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New User
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hm... I did the TPS checking as the repair manual instructed. Turns out the TPS was getting a Reference Voltage of .9V instead of the 5V it's supposed to get. Looks like I'll have to take it to a shop after all.
Postmaster
Joined: Oct 2003
Posts: 4,516
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From: SoCal
Sounds like your XLNT trouble shooting has just saved you 45 bucks. Good job. I'm looking at the wiring diagram for the EEC-4 on my 87 Ranger which might be the same as yours and it shows that all sensors recieve voltage from the ECA/electronic control assembly. Have you checked reference voltage at any other sensors?