Search found 1050 matches

by yoda69
Sun May 16, 2021 2:50 am
Forum: Euro GM ECUs
Topic: ECM - Corsa A-1987 - C13N engine - with Catalyst
Replies: 15
Views: 11135

Re: ECM - Corsa A-1987 - C13N engine - with Catalyst

Looking at this it shows the Opel 10 pin connector. https://www.techedge.com.au/vehicle/aldl8192/8192hw.htm#connectors Also some info here https://web.archive.org/web/20041209084800/http://www.lotus-carlton.fsnet.co.uk/CELFLASH.htm If the connector is the same, yours shows the 8192 baud pin as not p...
by yoda69
Wed Apr 14, 2021 3:18 pm
Forum: Off Topic
Topic: VZ BCM output options
Replies: 3
Views: 2274

Re: VZ BCM output options

The same part was used on Sedans, Utes, Wagons, Crewman and 1 tonner. Assume yours will be a MID level as I think it had powered windows. Just need to program a key fob and add the wire to the BCM if it's not already there and it all should work. If you have LOW level BCM I don't think it has the bo...
by yoda69
Sat Jan 16, 2021 2:55 am
Forum: Engineering and Reverse Engineering
Topic: Cluster Dump Checksum
Replies: 35
Views: 15233

Re: Custer Dump Checksum

I've only had a quick look, but it looks like an 8 bit checksum stored at either $0D4 or $0D5 as already stated. I checked several 1kb bins and if add $0D4 and $0D5 together you get FF in all that I checked. I've seen this done before so whatever the checksum these 2 always add to FF so the checksum...
by yoda69
Sun Dec 27, 2020 6:47 pm
Forum: General Tuning Discussion
Topic: 11p transmission 4l60e holding gears
Replies: 111
Views: 34057

Re: 11p transmission 4l60e holding gears

If you’re having problems with shift speeds first thing to do is get a good log. Standard parameters should work fine, if not and holding gears to long I would suspect a TPS fault. TPS is used for shift speeds vs throttle position, more importantly is also used fo4 line pressure. If it’s not reading...
by yoda69
Sun Dec 20, 2020 5:20 pm
Forum: Holden ALDL ECUs
Topic: VE Compensator
Replies: 15
Views: 4238

Re: VE Compensator

I believe it was used to allow the race teams to adjust fuelling on the fly for better power or economy. There is also mention of it in this thread. https://pcmhacking.net/forums/viewtopic.php?f=3&t=119 EDIT: GEN:OPT:EOPTB[bpw trim] This option enables variation of the output fuel pulse by a cal...
by yoda69
Fri Dec 11, 2020 7:51 pm
Forum: Off Topic
Topic: WK cluster in a VY
Replies: 11
Views: 4962

Re: VZ cluster in a VY

Post up the instrument cluster part number and I’ll try an tell you what it’s out of.
by yoda69
Fri Nov 06, 2020 7:48 pm
Forum: Chip/Memcal Reading/Writing
Topic: Offsets when burning different EPROMS
Replies: 43
Views: 37299

Re: Offsets when burning different EPROMS

27c128 is only 16K memory, need a 27C256 which is 32K or stack files for a 27C512 which is 64K.
by yoda69
Fri Nov 06, 2020 1:23 pm
Forum: Other Tuning
Topic: V6 LEO to LY7 conversion VE Commodore
Replies: 14
Views: 12518

Re: V6 LEO to LY7 conversion VE Commodore

I’ve seen an LY7 running a 4 speed auto without a problem in a VZ, not sure how different the VE will be.
From memory biggest issue was using HPTuners as it wasn’t happy with mismatched engine/trans so had to bench flash the calibration to ECU only.
by yoda69
Fri Sep 25, 2020 4:59 am
Forum: General Tuning Discussion
Topic: What does MGC refer to in tuning please?
Replies: 4
Views: 3018

Re: What does MGC refer to in tuning please?

Yes, pretty much.
As it’s actual air into the cylinder it’s not 100% correlated to manifold vacuum.
Theoretically Peak torque is produced when mgc is at its maximum and peak power when grams/second is at its maximum.
by yoda69
Thu Sep 24, 2020 5:54 pm
Forum: General Tuning Discussion
Topic: What does MGC refer to in tuning please?
Replies: 4
Views: 3018

Re: What does MGC refer to in tuning please?

Milligrams per cylinder of air.
Used in MAF based ECU’s like kPa is in MAP systems, ie. indication of engine load