Hi.
This is the build log of my Volvo 960 T5 build.
The car originally had a 2.5 straight 6 lump. I'm swapping a 2.3L inline 5 turbo from a 850 Turbo.
Engine/drivetrain mods so far:
- rebuilt engine by previous owner
- cams out of a N/A engine. longer lift, more overlap.
- custom intake manifold
- kevlar clutch & 850R pressure plate
In the 850 I was running a modified RICA tune.
Unfortunately the stock engine managent system can not be used after putting the engine into the 960. In the 850 the ignition is distributor type and the distributor cap doesn't fit between the engine and the firewall.
I've already fabricated a "star" shaped distributor (850 distro cap cut up and "re-worked" + 940 2.3 i4 turbo distributor cap) but I don't trust that... it is a custom made distributor cap.. enough said...
That is why I'm turning to the VEMS direction. Modifying the stock motronic system is complicated and there is no 100% working solution. VEMS solves every problem (EMS vise) I have to deal with at the moment.
Coil on plug ignition instead of the distributor style
I can fit any kind of injectors.
The whole build is documented on the turbobricks forum:
http://forums.turbobricks.com/showthread.php?t=277359
I'm going to concentrate on engine management side of the build here. Wiring, setup, tune, logs.
03/06/2013
VEMS is in a 850 T5 for testing. We couldn't get it to run. Standalone harness.
Sometimes it backfires to the intake, sometimes shoots black cloud out of the tailpipe.
RPM signal - check
Fuel pump - check (for troubleshoot purposes, wired to fix +12V)
Injectors - check. Has +12V during cranking
Ignition - wiring good, checked with a spare COP. Coil packs are in working condition. (no inbuilt ignitors, driven by IGBTs). Has +12V during cranking.
h[0]=08 02 01 04 10 20 40 80
h[1]=00 60 48 30 18 00 00 00
h[2]=20 40 30 10 00 00 00 00 <- this is wrong!!
this was nicked form a working setup and wired accordingly.
Config: https://docs.google.com/file/d/0BxBPRngsj-GsemdkQWJ5djZwNFk/edit?usp=sharing
Error log: https://docs.google.com/file/d/0BxBPRngsj-GsemdkQWJ5djZwNFk/edit?usp=sharing
Could you help me out here?
Thanks.
05/06/2013
Started all over. Ignition order is ok, no more ignition during intake cycle.
Still no start :(
Made new logs, available here: http://www.vems.hu/filethingie.php?subdir=NarancsVolvo/Logs%20june%2005
please take a look