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Old 10-27-2007, 01:52 AM   #1
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Default MS wired up, cranked, no start. Help.

im getting sick of this ****** electrical problems, coming from emanage, hoping that MS would do the trick.

well i tried starting the car, i cant get it to start. im constantly cranking, but its a no go

when cranking, i do see RPMs rise. i am also experiencing that little "pop" you guys are talking about when i turn the car to on.

i am also getting readings from the water temp and air temp.

whats going on? did i mess up on the MS build or wiring?

EDIT: i am attaching the MAPs i am using, which are courtesy of cjernigan (thanks for your help along the way) THE FILE IS AN MSQ FILE. just rename it MSQ. i changed it to .zip so i can upload here.
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File Type: zip 99miata10-22.zip (35.0 KB, 33 views)

Last edited by Marc D; 10-27-2007 at 04:58 AM.
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Old 10-27-2007, 02:36 AM   #2
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i tried hooking up the stock ECU up back to see if it was a problem with ignition. it seems that it does try to start, but it wont start either, (although i still left the 440 injectors in). im pretty sure its not starting because im flooding it but i wanted to see if the ignition was the problem. guess i couldnt tell.

any help guys?
this car has been down way too long :(

EDIT: I confirmed i have spark and fuel, but the car doesnt seem to be firing corrrectly. my buddy came by and told me it could be timing that is off.

he pulled the brake booster's line off and i cranked, and he told me theres hot air coming out, showing that the car is firing when the intake valves are open ><
it seems that my timing offset is completely wrong, hopefully this is just the case..?

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Old 10-27-2007, 05:27 AM   #3
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Have you fiddled with the cranking settings much?
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Old 10-27-2007, 08:27 AM   #4
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Try swapping your coil outputs, you have email.
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Old 10-27-2007, 12:27 PM   #5
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kool thanks guys, ill try those out after work today. ill let you know how it goes
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Old 10-27-2007, 01:25 PM   #6
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reverse the spark output like cjerigan suggested. easy way is swapping the spark plug wires around.
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Old 10-27-2007, 03:06 PM   #7
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got it. im kinda curious on the TPS as well. on closed, it shows 9% while WOT shows 74%... i hooked up the 5V and the signal wires accordingly. i was looking around settings to see if its possible to calibrate but i wasnt able to find any. is there a reason for this?
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Old 10-27-2007, 03:09 PM   #8
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tool -> calibrate tps

I think you have to do it while key is on but the ms is off or some such ****. You can probably find out the specifics in the msextra docs.
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Old 10-27-2007, 03:11 PM   #9
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ill look it up on the settings. thanks for your input everyone
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Old 10-27-2007, 04:44 PM   #10
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Quote:
Originally Posted by neogenesis2004 View Post
tool -> calibrate tps

I think you have to do it while key is on but the ms is off or some such ****. You can probably find out the specifics in the msextra docs.
how would you calibrate the MS with it switched off?

you generally calibrate the TPS with the engine off but the MS on as it means you don't rev the **** out of the engine
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Old 10-27-2007, 04:51 PM   #11
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thats what i meant, as you can tell.
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Old 10-27-2007, 06:15 PM   #12
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  • Key in the on position, car should not be running.
  • Connect to your MSPNP with MegaTune, from the Tools menu, choose 'Calibrate TPS'.
  • With your foot OFF the throttle, click 'GET CURRENT' for the Closed Throttle ADC Count
  • Floor it and hold it there. Click 'GET CURRENT' for the Full Throttle ADC Count

the end.
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Old 10-27-2007, 09:06 PM   #13
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^^^ did the following method, but it stil shows up as 9% at closed throttle to 74% WOT, even after calibration, under the Realtime Display. that why i was asking about it earlier cause i thought that should do the trick, but unfortunately, it still shows the same. im stumped. closed throttle = 29, WOT = 189..

as for swapping the coils out, i tried the easy way rather than to having to mess with the wiring again, i just swapped the coils 1-4 for 2-3, and tried it out. it seems like the car is trying to start this time, but it still wont follow through. and start. i still get that loud pop coming out from the tail pipe... definately fuel is coming out, but could they be stuck open and flooding the motor..? i have a feeling that could be the culprit. if i cant figure out the problem this weekend, ill be sending them to get cleaned and flowed.

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Old 10-27-2007, 09:49 PM   #14
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I never calibrated my TPS and my car still fires up every morning.
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Old 10-27-2007, 10:31 PM   #15
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Quote:
Originally Posted by badboy88000 View Post
as for swapping the coils out, i tried the easy way rather than to having to mess with the wiring again, i just swapped the coils 1-4 for 2-3, and tried it out. it seems like the car is trying to start this time, but it still wont follow through.

then it was most likely correct the first time.
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Old 10-27-2007, 11:20 PM   #16
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wow... so im completely stumped. i installed everything accordingly and i double checked. both coils are getting spark, fuel is coming out.

the TPS is still showing 74% at WOT rather than 100% even after "calibration" and at closed is showing 9%. i tried closing megatune and opening, and trying again, still nothing.

savington, you got PM
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Old 10-28-2007, 12:22 AM   #17
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have you adjusted your PWs to reflect your 440cc inejctors? make sure your flood clear value is above your closed TPS value.

your TPS is fine.
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Old 10-28-2007, 12:55 AM   #18
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alright, i checked the flood clear, and it was set at 180 (i think i set it previously) which is above the WOT position (189).

i have tried adjusting the PWs, but ill go ahead and keep messing around with them
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Old 10-28-2007, 08:50 PM   #19
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This may sound dumb, but did you maybe knock a vacuum line off?
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Old 10-28-2007, 09:57 PM   #20
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vacuum lines are all good. checked, double checked, everything is sound.

now, im not so sure whats going on. when the engine is cranking, it doesnt even sound like theres compression. i doubt thats the case, but i can always do a compression check soon. i never drove the engine hard or had any knocking, so i know they should be ok. just one night, i was messing around with the emanage, and all of a sudden, the car sounded like it was running on two cylinders... i never revved it at all, just only idle during that night. i couldnt have blown a piston or ringland right? i never had a case of knocking.

should i try and run fuel only on the megasquirt?
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