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6s Ecu to 8s ecu

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Old 23 June 2020, 12:42 AM
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Dingerisdivs
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Default 6s Ecu to 8s ecu

Evening all
looking for some advice if possible if it’s possible to change a classic jap 97 import from a 6s ecu to a 8s ecu, long story short my car has been in various garages for over two years with a maf Sensor warning appearing on the dash board and finally after some extensive looking into believe it’s the ecu that has gone corrupt, I bout a zero sport mapped 6s ecu which cured the maf sensor warning light however the car will not ideal with the mapped 6s ecu and I don’t want to keep it on there because I believe the mapping runs a higher octane fuel and other unknown mapping options, I am running out of ideas on where to go here in reference to ecu,s, I don’t want to go down the aftermarket link g4 or alyteck ecus as since the car is over twenty years old just want it to run with some boost
i can only think of changing the 6s ecu to a 8s ecu via a pin out as a standard 6s ecu are very hard to source
Any advice is much appreciated
Old 23 June 2020, 01:33 PM
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1509joe
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If you have an 6s or 8s ecu check your maf. Carefully cut the lid off and check for dry solder joints on the circuit board and re solder, I'd be 99% sure that's your problem.

Plus the Zero sport ecu would be very wicked for UK fuel.
I probably have a 6s ecu here if that doesn't cure your problem.

Last edited by 1509joe; 23 June 2020 at 01:41 PM.
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Old 23 June 2020, 04:33 PM
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Dingerisdivs
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Originally Posted by 1509joe
If you have an 6s or 8s ecu check your maf. Carefully cut the lid off and check for dry solder joints on the circuit board and re solder, I'd be 99% sure that's your problem.

Plus the Zero sport ecu would be very wicked for UK fuel.
I probably have a 6s ecu here if that doesn't cure your problem.
the maf is brand new orange maf even with seals still fitted to either side of the unit I’ve had three including the original one even had a continuity check on it all and all checks out ok even with the mapped 6s ecu the maf code warming disappears the original problem lay with the three wires that connected the maf back to the ecu rested on a intercoolrt pipe and fused together which various garages believed caused a back feed of the electrical signal back to ecu and caused some corruption, I would be more than happy to find a standard 6s ecu just to put in and see if it runs ok otherwise a pin out to a 8s is the only thing I can think of at this time

Old 23 June 2020, 04:49 PM
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1509joe
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I'll have a look here for a 6s ecu but it won't be in the case as it was swapped out for a syvecs pnp I'll check.
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Old 23 June 2020, 06:49 PM
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Originally Posted by 1509joe
I'll have a look here for a 6s ecu but it won't be in the case as it was swapped out for a syvecs pnp I'll check.
no worries about the case fella that would be great if you can find one
Many thanks
Old 23 June 2020, 10:16 PM
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ossett2k2
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8s is from a uk car,you'll need to swap some pins plus it will be a totally different map
Old 23 June 2020, 11:14 PM
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You have to swap cam and crank sensors and move the fuel pump pin Then you have different sensors to deal with.

Last edited by 1509joe; 23 June 2020 at 11:47 PM. Reason: JDM car
Old 24 June 2020, 08:20 AM
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stockcar
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and in general terms is a retrograde step.......
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