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Joined: Jul 2002
Posts: 4,714
Scourge of the Master Debaters
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Scourge of the Master Debaters
Joined: Jul 2002
Posts: 4,714 |
Originally posted by flummox:
Yeah.. good ol CA and their laws. I need to go get one of those code scanner things so I can do some diagnostic work at home.. or at least know what I am in for.
I highly recommend this. I got the OBD-II scanner from Alex Peper at http://www.oobd-2.com. I bought the highest-end scanner, the one that works on just about every car since 1996, but I plan on using it on friends and family cars, too. Once I use it three times it has paid for itself and then some, since my local dealer wants $40 just to pull the codes.
Beer is my Gatorade.
Hooray Beer.
'98 "Sport" Pacific Green
'98 E0 SVT Silver Frost
Pictures
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Joined: Dec 2001
Posts: 300
CEG\'er
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OP
CEG\'er
Joined: Dec 2001
Posts: 300 |
I will make sure to check that site out. Well.. checked all the connections, then reset the PCM. So far no CEL has come on.  Thanks everyone! CEG is the best!
1999 Silver Ford SVT Contour
Assembled 08/06/1999 - #2555 of 2760
formerly known as flummox
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Joined: Jul 2002
Posts: 4,714
Scourge of the Master Debaters
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Scourge of the Master Debaters
Joined: Jul 2002
Posts: 4,714 |
And I just noticed that my link is bad. Here is the right one: http://www.obd-2.com 
Beer is my Gatorade.
Hooray Beer.
'98 "Sport" Pacific Green
'98 E0 SVT Silver Frost
Pictures
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Joined: May 2000
Posts: 635
Veteran CEG\'er
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Veteran CEG\'er
Joined: May 2000
Posts: 635 |
Fluxxmo If you ever get to the bottom of this, We all would be interested in finding out what really happened.
I think a big wrench OOPS rang the sensor's bell. After helping do mine up on the rack, it's possible My WAG!
I'm sure glad I've got my software from ALEX. But believe me It's no cake walk trying to troubleshoot. I have the Ford CD manual and it would help to have had some of the Ford training schools. Of course it's no different from the Sonet/fiber transmission equipment we had at the phone company, it's still a bear troubleshooting with all the on-line, over the phone and on site help from the vendor.
But OBD II explorer does give that extra "one up" on what's going on and with the CEG site collaboration/OJT type, we can hopefully keep from getting the shaft at the repair shops.
The informed "Car Buff."
And after trying my hand at P 0401 I can sympathize with the shops and techs, some of the troubleshooting charts can take hours extra just to get through. And if you skip ahead, "Oh I know where this is going" WRONG! This is why so many are upset with the dealers????
Several Ceg'ers have figured out/interrupted what the Ford manuals Star generation tester equals too our/Alex's Explorer".
Quite a few of you younger/more computer savvy guys seem to be able to "Oh this really means this." Thank-you Thankyou!
Sort-a-like Red Green, "We're all in this together". I'm referring to getting boned up on OBD II, but what about the new stuff coming on some of the 2003's, Mazda 6, for one "Can Protocol". A Bosch developed standard, sorta like a mini LAN inside the car??????
If I can ever afford another car I sure hope it has a Web site like this one to us help live with this insane technology. Thanks Lance!!!!
What ever happen to Kiss???
We car buffs are going to need a degree just to be car Buff's????
Paul
Last edited by F111D F; 02/26/03 04:45 PM.
Paul
98 Mystique LS 2ea (07/97)(08/98)
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Joined: Dec 2001
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CEG\'er
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CEG\'er
Joined: Dec 2001
Posts: 300 |
Originally posted by F111D F:
Fluxxmo If you ever get to the bottom of this, We all would be interested in finding out what really happened. <snip> If I can ever afford another car I sure hope it has a Web site like this one to us help live with this insane technology. Thanks Lance!!!!
Paul
Well as of this morning I have no CEL. I had the DMD installed at a dealership (I actually think I found one that is pretty honest) and everything was cool. On my way home I am merging onto the freeway and the CEL starts blinking. From the manual it says it is a misfire if the CEL blinks. Did that a few times.. then I started this thread. Checked all the wires, plugs, sensor connections, etc and all seems ok. Someone mentioned that with the DMD the vibrations are very minimal and the computer may be getting confused cause of the lesser vibrations. So I cleared the PCM last night and drove it around.. and as of this morning no CEL has appeared.
This site is great! It has helped with a lot about my car and I hope this thread may be able to help someone else.. although I never did find the actual cause.. but maybe when someone sees a CEL after their DMD install they can at least see they are not the only one and try what was mentioned in this thread first before they panic like I did.
Thanks again CEG!
1999 Silver Ford SVT Contour
Assembled 08/06/1999 - #2555 of 2760
formerly known as flummox
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Joined: Jul 2002
Posts: 4,714
Scourge of the Master Debaters
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Scourge of the Master Debaters
Joined: Jul 2002
Posts: 4,714 |
I have an OBD-II scantool, and a DMD sitting on my bedroom floor. When I get it installed I'll look for the CEL to light up. When it does I'll pull the code just to see what it is, but I have a pretty good feeling that its already been worked out by this thread.
Beer is my Gatorade.
Hooray Beer.
'98 "Sport" Pacific Green
'98 E0 SVT Silver Frost
Pictures
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Joined: Sep 2000
Posts: 9,602
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2000
Posts: 9,602 |
The 2 things are not related outside of the fact maybe when they were under the hood they damaged or loosened a plug wire. (actually for this job the hood does not even need to be opened.)
Driving with a missfire is very damaging to the coil pack.
Not only that but when the missfire is happening you are dumping unburnt fuel into the cylinder or cylinders. This washes the walls and rings (possible damage), contaminates the oil (possible bearing damage), and floods the exhaust (possible O2 & cat damage)
Get the problem fixed ASAP!!!
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Joined: Dec 2001
Posts: 300
CEG\'er
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CEG\'er
Joined: Dec 2001
Posts: 300 |
Yes.. please do pull the code and you are going to love the DMD!
Edit: DemonSVT - Thanks for the heads up. The CEL is gone now so it should be ok. The car didnt run any different when the CEL came on vs. before and then now after I cleared the PCM.
Last edited by flummox; 02/26/03 07:16 PM.
1999 Silver Ford SVT Contour
Assembled 08/06/1999 - #2555 of 2760
formerly known as flummox
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Joined: Mar 2002
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Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Mar 2002
Posts: 1,325 |
Originally posted by DemonSVT:
The 2 things are not related outside of the fact maybe when they were under the hood they damaged or loosened a plug wire. (actually for this job the hood does not even need to be opened.)
"Misfire-detection is another sticky wicket. Obviously, all the engine's cylinders must be firing properly for the emissions-control system to work properly. Most automakers check for misfires by measuring crankshaft acceleration, using the existing crank-position sensor. The controller expects rotational acceleration to correlate with individual cylinder combustion events. Difficulties arise because of the influences on crankshaft rotational speed brought about, for example, by gearshifts and driveline shock, or by driving on rough roads. Some manufacturers are using accelerometers (or ABS, or even an internal engine-controller algorithm) to determine whether the vehicle is traversing rough roads. Knowing that, they can elect to unlock the torque-converter clutch and provide some damping of the driveline shock. Manual-transmission cars can't do this, and a number of stick-shift models have been broomed as a result of misfire-detection problems.
Detecting misfires with a crank-position sensor is also difficult on some engines at high rpm, where the ignition pulse rate is almost submerged by the engine's inertia. Five-cylinder engines, V-10s, and some odd-firing V-6s can generate erratic crankshaft-speed readings throughout their speed range, and even straight sixes may present variances produced by torsional whip. The signals from a crank-position sensor need careful filtering and processing to be dependable, and they need to be dependable if spurious MIL illumination and the storage of false problem codes in the system memory are to be avoided. "
Are you positive they're unrelated Demon?
At least I said I was guessing... In my humble uneducated opinion, elimination of variance produced by torsional whip (which is what a DMD does) could easily confuse the filter.
97 Contour SE MTX
K&N 3530, UR UDP, 19# Injectors, mystery mod, FMS wires, Fordchip.com chip, SVT: TB, Flywheel, clutch, exhaust
04 Grand Caravan SXT
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New CEG\'er
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New CEG\'er
Joined: Jan 2003
Posts: 29 |
Well I installed my DMD and I also got a check engine light. Went to AutoZone and they pulled the code, P0305. Misfire in cylinder #5. The car was running fine, before and after the DMD. Decided to reset the computer and the check engine light went away. It has been several days and the light has not come back. Again, this site really helped me out. I think it is strange that the check engine light did come on after installing the DMD.
The DMD is a great mod. The engine runs smoother and seems to rev a little bit faster but this may be because the engine does run smoother.
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