Desperate for some Help With Microsquirt, Beyond Frustrated |
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Desperate for some Help With Microsquirt, Beyond Frustrated |
Mblizzard |
Aug 25 2017, 04:54 PM
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#1
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
I have been trying to get my conversion done in time for Okteenerfest. I have run up against a brick wall and just cant seem to figure out what i am doing wrong.
If anyone can help me by looking at my tune files or providing insight it will be very much appreciated. I can get th car to idle but nothing beyond that. Any use of the throttle is less than impressive and almost useless. Meaning it bogs down and does not accelerate at all. I have no clue what i am missing. 2056 with new low impeadance injectors. Bosch Wideband O2 sensor. Really need some suggestions. Not sure if i can post the tune files here. But will try. |
wndsrfr |
Aug 27 2017, 07:14 PM
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#2
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Senior Member Group: Members Posts: 1,428 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region |
I think that first you need to be firing on all 4 cylinders and know that you're getting fuel injected on all 4.
Once that's done, your map should at least get some response if you're getting a good manifold pressure signal, so look carefully at that using a vacuum guage hooked in with a "T" connector somewhere that will show the manifold pressure. If you're on ITB's the manifold pressure signal will be very choppy & hard for the ECU to follow well. For that reason I switched my SDS injection system to throttle position only. I'm going to try to attach my SDS map--it's an excel spreadsheet. SDS has a dead nuts simple approach to the map for fuel pulse duration: Multiply the TP "value" in column B by the RPM fuel "Value" in column E to get the injector duration pulse each time it fires. Hope this will help a bit... SDS_Remap_TP_Sensing_8.xls ( 32.5k ) Number of downloads: 121 |
Mark Henry |
Aug 28 2017, 07:50 AM
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#3
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I think that first you need to be firing on all 4 cylinders and know that you're getting fuel injected on all 4. Once that's done, your map should at least get some response if you're getting a good manifold pressure signal, so look carefully at that using a vacuum guage hooked in with a "T" connector somewhere that will show the manifold pressure. If you're on ITB's the manifold pressure signal will be very choppy & hard for the ECU to follow well. For that reason I switched my SDS injection system to throttle position only. I'm going to try to attach my SDS map--it's an excel spreadsheet. SDS has a dead nuts simple approach to the map for fuel pulse duration: Multiply the TP "value" in column B by the RPM fuel "Value" in column E to get the injector duration pulse each time it fires. Hope this will help a bit... SDS_Remap_TP_Sensing_8.xls ( 32.5k ) Number of downloads: 121 This why I keep asking for some info on your system, ITB may never have good enough vac signal and running TPS only solves 90% of low vac issues. |
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