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Old 06-30-2010, 01:17 AM   #1
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Default mspnp resets

Sorry for the noob issues. I installed mspnp in my 97 and got the car running on the base map without MAF. Car idles smooth and seems to drive alright although a bit lean if the MT AFR guage is at all accurate when set for narrow band. My first concern is the high reset count. From what I've read this is most likely a ground issue. What grounds am I supposed to check? I haven't touched any grounds during the install. The other thing to check from what I've read is plug gaps. I'll do this as soon as engine cools.
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Old 06-30-2010, 11:00 AM   #2
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Please post a data log of the resets; there may be some clues about what's wrong there.
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Old 06-30-2010, 12:41 PM   #3
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Hope this loads. I suck at uploading things. I also swaped some guages and noticed while driving in to work today that my fuel pressure is only at 15-16psi. I'll change the fuel filter tonight, but could this also be caused by a bad ground for the fuel pump?
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File Type: xls datalog201006292015.xls (1.25 MB, 70 views)

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Old 07-01-2010, 11:19 AM   #4
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These "resets" aren't real resets at all - they're noise on the serial communications. Are you using a USB adapter or a direct serial connection?
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Old 07-01-2010, 01:48 PM   #5
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I'm using the adapter that I got from Emilio when I picked up the MS. What is the possibility of it being the laptop? The laptop I'm using has been through the ringer.
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Old 07-01-2010, 04:12 PM   #6
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You might want to adjust the USB adapter's buffer size under Device Manager. Also make sure it's not loose in the laptop's socket.
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Old 07-01-2010, 04:21 PM   #7
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Quote:
Originally Posted by Matt Cramer View Post
Also make sure it's not loose in the laptop's socket.
That's what she said.
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Old 07-02-2010, 02:09 AM   #8
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COM4 settings are at default settings. Transmit and recieve 4096 Bytes; Latency 16 msec; timeouts are at 0. What should I adjust... latency to 0?
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Old 07-02-2010, 03:55 PM   #9
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It seems to depend on the driver; you may want to drop the latency a little (not to 0) and see if it helps.
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Old 07-04-2010, 01:09 PM   #10
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I've tried latency at 12, 8, 4 and 1 now and it hasn't made any difference. Any other ideas?
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Old 07-06-2010, 01:55 PM   #11
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Ok, try going into this folder:

C:\Program Files\MegaSquirt\mtCommon

Open the common.ini file in there. Change the interWriteDelay line from 1 to 5 and see if that helps.
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Old 07-10-2010, 12:39 PM   #12
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That didn't seem to do much either. I'm going to try to find someone with a laptop that I can borrow or maybe even just take my desktop out to the garage and just let the car idle.
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