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Old 12-17-2007, 01:10 PM   #1
Zekeboy
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Default engine control computer or power control module?

I took my 98 SW2 to get it smogged and I was told the OBD II would not communicate with the smog test computer. My mechanic said it could be the engine computer, the power control module or the (connection busses?)

This car (San Diego) has 70,000 miles and appears to be in very good condition.

I screwed up (bad) and bought the car without a smog certificate. Brain fart I guess?

Help...... please I can't transfer the title with out the smog....

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Old 12-17-2007, 01:20 PM   #2
siliconvalley
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Default Re: engine control computer or power control module?

I think by the law, it is the seller's responsibility to pass the smog. If I were you, I won't pay the seller unless I see the smog certificate in hand. I guess now it is a little messy since you already paied it. Good Luck.

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Old 12-17-2007, 01:31 PM   #3
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Default Re: engine control computer or power control module?

He's probably already paid. There's only one computer on a '98 though I've heard it called different things. On here it's usually called the PCM (Powertrain Control Module). There was a thread on here a few days ago where someone had a similar problem. I'm not certain whether it was resolved but, there were a lot of good suggestions in it to get you started. Check it out here.

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Old 12-17-2007, 02:26 PM   #4
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Default Re: engine control computer or power control module?

Thanks for all the good info. Yep, I don't know what I was thinking! Guess I wasn't? But yes, I paid already. I am still in contact with the previous owner. He may do the right thing but I ain't counting on it. He's supposed to call today. I'm not holding my breath. Sad thing is that his wife passed away soon after he sold me the car so he's been a little overwhelmed.

Anyway, it's my fault so I'll have to suck it up and fix the car. Take him to small claims? Who knows? It's a matter of principle, he deliberately decieved me and he should be held accountable.

Any idea what it may cost me to fix this? I'm pretty good mechanically speaking. Is this something I can do myself.

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Old 12-17-2007, 04:36 PM   #5
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Default Re: engine control computer or power control module?

Quote:
Originally Posted by Zekeboy View Post
Any idea what it may cost me to fix this? I'm pretty good mechanically speaking. Is this something I can do myself.
It may not cost much at all. Follow the suggestions in that link I provided. It could be as simple as a fuse or a dirty ground. If you do take it somewhere after that, tell them what you did. Then they won't try to lay a line of crap on you. It's a rare failure but, you can even get a PCM and put it in yourself if it comes to that. It's not that hard to get to.

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Old 12-17-2007, 05:46 PM   #6
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Default Re: engine control computer or power control module?

Like BarnOwl said, its most likely a bad ground or blown fuse. Does the cig. lighter work?? A bad PCM is extremely unlikely.

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Old 12-17-2007, 05:55 PM   #7
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Default Re: engine control computer or power control module?

Yes, it works. I use it to charge my cell phone. The car runs great. Getting 25 mpg in town, is that about right? I'm gonna take it to the shop I've been using for a long time. I trust them and it may be easier than bothering the old man I bought it from.

I bought it as a tow vehicle for my motorhome. All the tow gear is probably worth $2000.00 so I figure I'm still ahead of the game.

And, aren't pollution related components (ECC) warrantied (sp?)to 80,000 miles by law? The one in my truck went out and Dodge replaced it for free.... Plus, how about the Saturn warranty? Ten yrs, 100,000 miles?

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Old 12-17-2007, 06:00 PM   #8
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Default Re: engine control computer or power control module?

Make sure all the wires on the connector are good. I know I boot f#@&ed the crap outta the one on my '02 SC1. It still works, but I smashed the bracket. I had to tuck it up under the dash. Maybe yours has a bad wire in it though.

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Old 12-18-2007, 10:32 AM   #9
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Default Update - engine control computer

I stopped by Auto Zone last night and gave the code reader a try. All it said was "PASSED" "No codes read"?

I don't know what that means but it seems to me that the OBD II is working? Am I wrong?

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Old 12-18-2007, 10:45 AM   #10
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Default Re: Update - engine control computer

Quote:
Originally Posted by Zekeboy View Post
I stopped by Auto Zone last night and gave the code reader a try. All it said was "PASSED" "No codes read"?

I don't know what that means but it seems to me that the OBD II is working? Am I wrong?
Sounds like everything is working to me. If there was a connection problem, the scanner would of said so. Seems like whoever did your emissions check didnt have the connector all the way plugged in, or was trying to make a buck off of you.

...
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Old 12-20-2007, 01:51 PM   #11
Zekeboy
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Default Update - ecc or pcm -smog issue

I took the car to my mechanic yesterday. Cost me $30.00 for the smog. I don't know what happened at the previous smog place? Maybe it was late on Friday and he wanted to go home?? Anyway, the car is fine, passed smog.

I guess I need to stop assuming the worst!!! Dang! Such a drama queen!

Thanks and Merry Christmas everyone,

Zeke

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