- Navigation
Results 1 to 9 of 9
Thread: Help with wet pcm connectors
-
04-25-2013, 10:04 PM #1
InActive Member
- Status
- Offline
- Join Date
- Apr 2013
- Posts
- 62
Help with wet pcm connectors
May be a long read: 1996 trans am. Had a misfire a while back (ses light would flash). Looked under the hood at night and saw where the spark was shooting out of one wire. Fast forward a few days , I got a replacement wire and went to turn the car on and nothing. What I did notice was that the ses light would not come on when I turn the switch on (you know like it always does but goes away once you start the car) so I bought an obd2 scanner and I got a link error ( scanner powers on, searches for codes but gives a link error). So I thought to check the pcm and switch it with one I have in the garage. I removed the harness connectors and they were wet. Soaking wet. I shake them and drops of water come out of the color coded plastic pieces where the pins are. The pcm pins are also wet. I must have re installed it wrong a while back when I undid the obd1 conversion to pass smog. Question is , is my pcm fried? Suggestions on getting rid of all the water on the connectors? Blow dryer?
-
04-25-2013, 10:08 PM #2
Banned
- Status
- Offline
- Join Date
- Sep 2008
- Name
- Big Papi
- Vehicle
- 2015 Fusion Titanium AWD
- Location
- Moscow Mills Mo
- Posts
- 7,241
- Blog Entries
- 1
I would put the PCM in a bowl of rice of if you have some dessicants to dry it out. Fix your sealing issue that is allowing moisture to get there. Use a eletrical cleaner on the PCM connectors once the have dried and apply dieltic grase to them
-
04-25-2013, 10:13 PM #3
LTX AUTOX GURU!
- Status
- Offline
- Join Date
- Oct 2010
- Location
- Manhattan, KS
- Posts
- 3,334
Like Chris said. If its wet. the pcm won't be able to communicate with anything because signals/pulses will be going crazy.
Had same thing on my old 95 happen. I pulled it. let it sit and dry then it fired up. I was young and dumb. And shot it with a power washer....live and learn i guess lol94 Trans am. Built 383/T56(437/409) Wilwoods, tubular suspension, QA1/BMR, Watts Link. Stripped down and set to kill!
Twin Tubo build underway. !GOING AFTER LTX STANDING MILE RECORD!
-
04-25-2013, 10:18 PM #4
InActive Member
- Status
- Offline
- Join Date
- Apr 2013
- Posts
- 62
Thanks guys. I will do that. And let you know how it goes. I Appreciate the help.
-
04-25-2013, 10:21 PM #5
InActive Member
- Status
- Offline
- Join Date
- Apr 2013
- Posts
- 62
Thing is I know not to power wash the engine bay on this car. So I need to figure out where water is getting in there from. It rained a few days between now and then. That must have done it.
-
04-25-2013, 10:27 PM #6
Banned
- Status
- Offline
- Join Date
- Sep 2008
- Name
- Big Papi
- Vehicle
- 2015 Fusion Titanium AWD
- Location
- Moscow Mills Mo
- Posts
- 7,241
- Blog Entries
- 1
I took my car to the power washer and never opened my hood and got a flashing ses lol
-
04-25-2013, 10:27 PM #7
InActive Member
- Status
- Offline
- Join Date
- Apr 2013
- Posts
- 62
Lol damn.
-
04-25-2013, 10:28 PM #8
LTX AUTOX GURU!
- Status
- Offline
- Join Date
- Oct 2010
- Location
- Manhattan, KS
- Posts
- 3,334
Water will run down the cowl. And drip into the area where the pcm is(if the rubber seal is worn out on it). I replaced the one on my 94 because it was getting pretty bad(25.00) and laid a line of rtv sealer under it for good measure.
Originally Posted by LT_juan
Last edited by MeanTA; 04-26-2013 at 07:27 AM.
94 Trans am. Built 383/T56(437/409) Wilwoods, tubular suspension, QA1/BMR, Watts Link. Stripped down and set to kill!
Twin Tubo build underway. !GOING AFTER LTX STANDING MILE RECORD!
-
04-26-2013, 07:07 AM #9
InActive Member
- Status
- Offline
- Join Date
- Apr 2013
- Posts
- 62
Will do the same. Thanks
Reply With Quote
Bookmarks