The recent log shows it dropped to -20. I have the graph as an image. Its the on the top layer just left of the line. You can see the plummet towards the bottom line.
What could cause this?
Sparatic MAP drop -20
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Sparatic MAP drop -20
Sometimes while driving my MAP sensor will drop out and I will go LEAN and cause my Jeep to stumble and as it does this it jerks like I'm applying the brakes. This is not a problem that is consistent. It comes and goes...sometimes it will happen 3 times in 20 mins....others none.
The recent log shows it dropped to -20. I have the graph as an image. Its the on the top layer just left of the line. You can see the plummet towards the bottom line.
What could cause this?
The recent log shows it dropped to -20. I have the graph as an image. Its the on the top layer just left of the line. You can see the plummet towards the bottom line.
What could cause this?
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Sparatic MAP drop -20
Could you please post a complete copy of the log file? Sounds like it's either some very strange noise or a firmware corruption problem.
Re: Sparatic MAP drop -20
Here you go Matt
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Sparatic MAP drop -20
Very weird. This could be some sort of voltage spike on VREF or the 12 volt input, or it could be a damaged MAP sensor.
Re: Sparatic MAP drop -20
actually now that you said that, I think it is the connection on the MAP. One of the holes that the prong goes through for you to solder.... well some of the copper came off... So I should find another connection on the board and use a jumper wire....
Re: Sparatic MAP drop -20
Ok so if the MAP sensor port is away from you and your looking from the top,..... the solder WILL NOT take on the 3rd prong. Its between the 102 and 104 yellow diode things. Can I jump this to somehwere, or is my bored messed up?
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Matt Cramer
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Re: Sparatic MAP drop -20
You can wire the 3rd prong to other VREF points on the board.
Re: Sparatic MAP drop -20
ok lol I have no idea where those can be found...
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Sparatic MAP drop -20
Anything connected to "Vref" in the schematics: http://www.megamanual.com/ms2/pcb.htm