Search found 49 matches

by zen
Sun Sep 07, 2014 2:58 pm
Forum: MegaShift Transmission Application
Topic: GPIO crashing when tuning MS2
Replies: 7
Views: 10718

Re: gpio crashing when altering ms2 settings..new tuner stud

forgot.....thanks..any ideas??
by zen
Sun Sep 07, 2014 2:56 pm
Forum: MegaShift Transmission Application
Topic: GPIO crashing when tuning MS2
Replies: 7
Views: 10718

gpio crashing when altering ms2 settings..new tuner studio?

ruby mary + accel 4 OPEN LOOP..msq hi when tuning the ms2 msq, ie lets say altering the idle steps for tick over, once hit burn gpio crashes..ie refuses to change gear, wont even go into reverse.. also, it seems to take a age for changes to ms2 to be implemented..ie changing iac steps from 50 to 40...
by zen
Sat Jul 12, 2014 4:02 pm
Forum: MegaShift Transmission Application
Topic: Reed switch for VSS
Replies: 3
Views: 5993

Re: Reed switch for VSS

lucky you!!

should remove most if not all vss issues most seem to have..square wave in!!
by zen
Fri Jul 11, 2014 3:09 pm
Forum: MegaShift Transmission Application
Topic: gearbox slipping when "kickdown" from 2nd to 1st
Replies: 0
Views: 26231

gearbox slipping when "kickdown" from 2nd to 1st

didnt do this with oe tcu, so must be down to me. box is zf24hpeh, but lets assume its a gm box (same princilpes)..when i load the gearbox at say 15mph to drop it out of 2nd into 1st (ie boot it) it slips like mad..ie no go.. now i have been trying to sort by altering line pressures and shift complt...
by zen
Mon Jul 07, 2014 12:08 pm
Forum: MegaShift Transmission Application
Topic: ZF 24hpeh..ie range rover p38
Replies: 5
Views: 10921

Re: ZF 24hpeh..ie range rover p38

for those interested... build as 4l60..you dont need sol 3 though, just leave it out.. use lm2907 vss conditioner ic..go to datasheet and use crt for transducer conditioner number 2..ie 1 pulse in 1 pulse out.on input to lm2907 500r...vss in to 500 to gnd.from there 47k to input pin of lm2907..from ...
by zen
Sun Jul 06, 2014 5:18 am
Forum: MegaShift Transmission Application
Topic: no gear changes..stays in first.VSS ISSUE.Thoughts please
Replies: 11
Views: 13352

Re: no gear changes..stays in first.VSS ISSUE.Thoughts pleas

ok..it might now be working.... i have kept the lm2907 crt..dumped the optocoupler and used the crt from datasheet..ie 1 pulse in 1 pulse out. i have put a 10k preset as potential divider on output and 0.1uf to gnd this goes directly to pt0..via a wire..i will alter gpio crt later to use ampseal plu...
by zen
Sat Jul 05, 2014 6:37 pm
Forum: MegaShift Transmission Application
Topic: no gear changes..stays in first.VSS ISSUE.Thoughts please
Replies: 11
Views: 13352

Re: no gear changes..stays in first.VSS ISSUE.Thoughts pleas

question.. i have wired up gpio as 4l60..ie using sol3 driver transistor..as i dont have a sol3 i have just left it floating and not connected processor jumper to gpio board.. will this cause sol3 trasistor to go into oscillation etc?? i dont see that it will, but now (at 3.30am) wondering?? also go...
by zen
Sat Jul 05, 2014 1:18 pm
Forum: MegaShift Transmission Application
Topic: no gear changes..stays in first.VSS ISSUE.Thoughts please
Replies: 11
Views: 13352

Re: no gear changes..stays in first.VSS ISSUE.Thoughts pleas

hi Lance well today i spent 8 hrs on it...and only made things worse i have tried everything on said page you mentioned except the schmit input trigger mod..however i built a circuit around the LM2907 and optocoupler.. all that did was crash the gpio!!yes it gave a nice square wave out, but even whe...
by zen
Wed Jul 02, 2014 1:12 pm
Forum: MegaShift Transmission Application
Topic: no gear changes..stays in first.VSS ISSUE.Thoughts please
Replies: 11
Views: 13352

Re: no gear changes..stays in first.VSS ISSUE.Thoughts pleas

this is starting to hurt my head now..no speedo reading till 3ish mph, then reads 100mph!..though if i put transferbox in neutral and allow to drive reads ok*(ish) so decided to do away with Range rover gearbox loom and plug and play setup..i will be using the loom but gutting it to just the essenti...
by zen
Wed Jul 02, 2014 2:37 am
Forum: MegaShift Transmission Application
Topic: no gear changes..stays in first.VSS ISSUE.Thoughts please
Replies: 11
Views: 13352

Re: no gear changes..stays in first.VSS ISSUE.Thoughts pleas

Yes it was working fine with oe controller And yes i can scope vss signal Re vss wiring..it runs a pair of wires marked vss+ And vss- Both are screened..i have connected vss+ to gpio vss In and vss- to earth on pin 17 .the screen is on another earth .would it help to put screen on pin17 as well?? Ha...