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Issue with new basemap/ecu

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Old May 8, 2013 | 02:07 PM
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Default Issue with new basemap/ecu

Ok i will try and include any pert info:

92 dx gsr motor STOCK. With i/e
Obd1 gsr harness.
Chassis was auto but is running correct jumper wire for auto/manual conversion. Other than that harness are not modded in any way.

Car runs fine with stock obd1 p72 full rev limit np. I bought socketed ecu from buddy and chip from phearable.net. Put chip in the correct way. Start car has 3.5k 2step/launch. That works but as soon as i put in gear and pull away i am limited to 3.5k rpms like driving in launch mode. So i fig my buddies ecu was bad. So i call up john monday and order ecu/basemap. Put in today same thing. New ecu has NO cel's.
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Old May 8, 2013 | 04:58 PM
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ThE HeLLRaZoR's Avatar
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Default Re: Issue with new basemap/ecu

Why don't you just put your Stock ecu back in
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Old May 8, 2013 | 05:19 PM
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Default Re: Issue with new basemap/ecu

Because i do have sk2 mani, custom intake, header on order, buddy club spec 2, and i do not have iab/knock wired into body harness. And would like car to run correctly
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Old May 8, 2013 | 05:47 PM
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Default Re: Issue with new basemap/ecu

Make sure the speedometer is working correctly.
The ecu must see vehicle speed in order for it to rev past the 2 step point.
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Old May 8, 2013 | 05:58 PM
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Default Re: Issue with new basemap/ecu

Yes vss works correctly

All works fine on stock ecu. Idk but 2 chips w/same tune burnt i am thinking miht be a mistake in chip
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Old May 8, 2013 | 07:55 PM
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Default Re: Issue with new basemap/ecu

Originally Posted by jdmh22eg2
Yes vss works correctly

All works fine on stock ecu. Idk but 2 chips w/same tune burnt i am thinking miht be a mistake in chip
It is rare, but we have seen vehicles where the speedo on the dash works but the speed signal isn't being sent to the ecu which would cause the issue you are having.

If you contact us directly with your order number we can review the order and ensure that the issue isn't a mistake which I am 99.9% sure it is a problem with your vehicle, not the basemap.
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Old May 8, 2013 | 10:24 PM
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Default Re: Issue with new basemap/ecu

The 2 step launch comes from the signal of the clutch switch disengaging + Speed. If you converted to auto and if you don't have the clutch switch to the ECU hooked up, bypassed, or engaged all the time with a wire. You are pretty much stuck at a Launch control loop. I would suggest you order a new base map WITHOUT launch control and test it out first. Easiest way to tell if your clutch switch works is if stepping on the clutch to start the car is required, then go from their.
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Old May 9, 2013 | 02:49 AM
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Default Re: Issue with new basemap/ecu

Originally Posted by mtber
It is rare, but we have seen vehicles where the speedo on the dash works but the speed signal isn't being sent to the ecu which would cause the issue you are having.

If you contact us directly with your order number we can review the order and ensure that the issue isn't a mistake which I am 99.9% sure it is a problem with your vehicle, not the basemap.
Ok will call ya but i may look into below suggestion, may be issue. Dont remeber how its setup in clutch switch.

BTW this thread was meant in NO WAY to bash you or your product. I only put your company so ppl reading could know everything that was important


Originally Posted by swordofdoom
The 2 step launch comes from the signal of the clutch switch disengaging + Speed. If you converted to auto and if you don't have the clutch switch to the ECU hooked up, bypassed, or engaged all the time with a wire. You are pretty much stuck at a Launch control loop. I would suggest you order a new base map WITHOUT launch control and test it out first. Easiest way to tell if your clutch switch works is if stepping on the clutch to start the car is required, then go from their.
Ok makes sense i will check it when i get home tonight

Last edited by jdmh22eg2; May 9, 2013 at 03:26 AM.
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Old May 9, 2013 | 06:52 AM
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Default Re: Issue with new basemap/ecu

ok called today and clutch switch will NOT cause this issue. they are sending me a new chip w/o 2step/launch so hopefully that will help and solve issue. I will update accordingly



deff good ppl to talk/deal with over there at phearable.net

I will also be testing my vss with my labscope this weekend. I checked last night with mutlimeter and it was giving me a voltage but hard to say how good the signal really is with out a waveform signal to look at.
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Old May 9, 2013 | 12:02 PM
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Default Re: Issue with new basemap/ecu

Originally Posted by swordofdoom
The 2 step launch comes from the signal of the clutch switch disengaging If you converted to auto and if you don't have the clutch switch to the ECU hooked up
Your Clutch Switch doesn't go to your ecu. You have to splice in to the Switch+ and run it to the ecu for it to work this way. This does seem like a vss problem. The 2step function is Vehicle Speed dependant if not mistaken. So below say 3mph hour the 2step is active, above 3mph it is deactivated. It seems like it's not getting the signal from vss telling the ecu its above this threshold. Another thing I find strange though. Is it also uses the vss signal to activate/deactivate Vtec. If vtec works fine with his stock p72 you know the ecu is receiving it's signal from the vss. I'd still look at your vss wiring though. B10 on ecu all the way to the connector at the vss.
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Old May 9, 2013 | 04:21 PM
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Default Re: Issue with new basemap/ecu

Ok i had other ase tech buddy over (i am one as well) we hooked up labscope to b10 and put in 5th gear (on jack stands) it is making nice square wave form but only about 9v or so. But what was wierd is there was a constant 5v on orange wire (at vss) with koeo (at b10). I was under impression that 5v was only susposed to be an output signal voltage. Then put back down on ground drive around and seem to loose some voltage at b10 more i drove. Mind you i was using a auto range fluke (not as fast as labscope). Driving around was 3.5-4.3 ish volts on b10. Leads me to belive i have a bad connection or loose wire to find.

Btw all test above were done on NEW phearable.net ecu.



On a side note car ran VERY well for what it is partly thanks to phearable.nets basemap, deff could tell big improvment over stock p72 mapping.

Last edited by jdmh22eg2; May 10, 2013 at 03:34 AM.
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Old May 9, 2013 | 06:38 PM
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Default Re: Issue with new basemap/ecu

You mean B10. Stock obd1 ecu's dont have a D receptacle.
That orange 5v wire is the "Input" not the output to the ecu(it's an output from the vss).
This is were your problem would be. Spin the wheels by hand and it should pulse 5v at pin b10.
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Old May 10, 2013 | 02:36 AM
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Default Re: Issue with new basemap/ecu

Yea sorry b10. And yes i was testing at ecu w/scope to see if i had signal at ecu from signal wire of vss and it shows 9v or so at ecu (b10 yellow/blue). so it would appear as if I have to much voltage? I will try and take a pic of scope tonight and post a pic of car on stands w/scope hooked up to b10.

Last edited by jdmh22eg2; May 10, 2013 at 03:33 AM.
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