tolerate Posted February 12, 2014 Share Posted February 12, 2014 Help me HybridZ, you're my only hope. First I have an Megasquirt 1 extra (MSnS 1) v3.0 board. No relay. Before trying to connect MSnS with my laptop it was running rich but working. I tried to connect to the 9 pin using a 15 pin adaptor and connecting it that way. After hooking it up I heard a whistling noise like the injectors emptying and saw the fuel rail pressure drop from 40->0. Afterwards I cannot connect to MSnS. I disconnected the laptop and tried to turnover the engine, no fuel pump noise either. I thought I might've blew a fuse, but they're all fine, and relays are good too. I took out the MSnS and visually checked for burns etc, it looks fine. I've been tracing wiring trying to find an inline fuse I might've missed. Has this happened to anyone else? Any advice on how to proceed? I guess it's time to buy that stim board. Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted February 19, 2014 Share Posted February 19, 2014 I tried to connect to the 9 pin using a 15 pin adaptor and connecting it that way. Was the 15 pin connector in question on the computer or the MS? The 15 pin connector on some MegaSquirt versions is an expansion connector that, if used, is meant to be wired to the engine. The 15 pin connector on laptops is a graphics output connector. Trying to use a MegaSquirt as a graphics display may cause a short circuit. Quote Link to comment Share on other sites More sharing options...
tolerate Posted February 19, 2014 Author Share Posted February 19, 2014 (edited) The 15 pin connector was on the computer. I feel like an idiot. I'm going to get the board tested and hopefully repaired at a local computer place. Thanks for your help! If it doesnt work out, I'll hit you guys up for a MS 2 extra. Do you have an assembled unit for a L28ET? ** update: I talked to my IT guy, and he said that the ozone smell means its fried. Edited February 19, 2014 by tolerate Quote Link to comment Share on other sites More sharing options...
loy Posted February 20, 2014 Share Posted February 20, 2014 Does diyautotune have a repair service? You could go that route. Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted February 20, 2014 Share Posted February 20, 2014 (edited) Does diyautotune have a repair service? You could go that route. We can fix ECUs we originally built, but are not set up to work on ECUs bought elsewhere or built from a kit. For those, I'd recommend Peter Florance; he's the guy we send our hardest warranty work to. Here's his website: http://www.pftuning.com Edited February 20, 2014 by Matt Cramer Quote Link to comment Share on other sites More sharing options...
tolerate Posted February 28, 2014 Author Share Posted February 28, 2014 I bought a stim from DIY solder it together and my MS 1 3.0 works fiine. Going to the land of darkness of confusing wiring, armed with only my trusty multimeter and any advice you guys can give me. Quote Link to comment Share on other sites More sharing options...
loy Posted February 28, 2014 Share Posted February 28, 2014 I assume you are trying to get the original MS working? Did you ever connect to it using the serial port? Check for fuel and spark. Quote Link to comment Share on other sites More sharing options...
tolerate Posted February 28, 2014 Author Share Posted February 28, 2014 Yes, I'm working on the original. I just soldered the stim together and plugged it in for power. All the LEDs were lit up/pulsing. I will check for fuel and spark tonight. I originally tried to hook it up b/c I was running too rich, engine kept shutting off. Now i wonder if its a sensor problem. Quote Link to comment Share on other sites More sharing options...
tolerate Posted March 1, 2014 Author Share Posted March 1, 2014 So.. why can't i change my afr target values to a value greater than 5? Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted March 3, 2014 Share Posted March 3, 2014 This sounds like it's for some reason configured to target voltage instead of AFR; can you post a copy of your tune file? Quote Link to comment Share on other sites More sharing options...
tolerate Posted March 4, 2014 Author Share Posted March 4, 2014 Thanks Matt for taking the time to help me, I really appreciate it. Sorry for being noobish, I don't understand how to upload my msq on this forum, so I made it available on mediafire (its in a zip file). https://www.mediafire.com/?m8fmja2gfvbviq6 Car stats: Rebuilt 28LET (reworked head, original pistons, new rings, bearings, honed and dipped block, new gaskets, water pump, oil pump) MegaSquirt n Spark Extra EFI Turbonetics (I think) T3/T04B turbocharger Intercooler with 2.5" aluminum piping Griffin aluminum radiator 16" electric fan SS Braided fuel lines and fittings throughout Aeromotive Fuel Filter Russel fuel filter at pump 255LPH Walbro Fuel Pump MSD Blaster Coil 90 amp Maxima alternator 260z intake manifold (no EGR) Cold air intake 440cc Supra injectors (flow tested, Dec/13 by witchhunter) JSK O-ring Fuel Rail Aeromotive Fuel Pressure Regulator Innovative Wideband O2 sensor Autometer boost gage SS Braided brake lines 60mm Throttle body Blitz Blowoff valve Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted March 4, 2014 Share Posted March 4, 2014 (edited) Under Project Properties, you've got the EGO set to "wideband in NB emulator mode" - try changing it to Innovate LC-1 Default instead. That should get the AFR target table sorted correctly. Edited March 4, 2014 by Matt Cramer Quote Link to comment Share on other sites More sharing options...
tolerate Posted March 4, 2014 Author Share Posted March 4, 2014 would this explain why i'm running super rich? Quote Link to comment Share on other sites More sharing options...
tolerate Posted March 10, 2014 Author Share Posted March 10, 2014 Just wanted to update you guys. I recharged the battery and swapped the fuel and main relays out and boom, it fired up. Thanks Matt for the advice changing my ego set, its running a little lean, but I think it'll sort out with new gas and letting it run. Will go for a test drive after I replace a leaky brake booster. Quote Link to comment Share on other sites More sharing options...
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