Back again with yet another 'will not run' issue. 87 turbo that has been in continuous mods since purchased over 2 decades ago. Current condition has engine running with stock ecm, but not with xfi. Most recent mod was a complete capar's wiring harness. Nostart tree checks find 1) fuel fine, 2) spark fine 3) ccci fine, checked with caspar's tool, 4) timing fine, again caspar's tool. Lights on xfi box indicate proper cam and crank signals. Caspar's ecu box sent to Caspar's and checked fine. Xfi unit sent to comp and checked fine.
My guess is that there is something in the xfi communication that is not correct. Connection to xfi is confirmed. VE tables display as expected. Cranking gives appropriate signnames (rpm, tps, etc.). Loaded most recent tune from Anderson's, w/r any change. Went back to the xfi manual looking for anything I should be checking.
There should be something buried in the xfi unit that I should be able to display via my computer. Comp folks have not been overly helpful.
If anyone has a suggestion about using the xfi unit to debug this issue, please comment.
FYI, the xfi unit has not been reliable since installation in 2005. Seriously regret the purchase. But that's in the past... Task now is to get the engine running. I would add that Anderson's have been my choice for working on this car. In fact the xfi was purchased and installed by Bill. Unfortunately, the last time this happened (2020), Anderson's was able to fix it. But no explanation was provided when the invoice ($$$) was paid. Nothing against Bill. He knows this car better than most. Keeping it running has become a serious issue. I should be able to diagnosis this hale without expecting a $$ service charge everytime this happens.
Thanks,
DGC
My guess is that there is something in the xfi communication that is not correct. Connection to xfi is confirmed. VE tables display as expected. Cranking gives appropriate signnames (rpm, tps, etc.). Loaded most recent tune from Anderson's, w/r any change. Went back to the xfi manual looking for anything I should be checking.
There should be something buried in the xfi unit that I should be able to display via my computer. Comp folks have not been overly helpful.
If anyone has a suggestion about using the xfi unit to debug this issue, please comment.
FYI, the xfi unit has not been reliable since installation in 2005. Seriously regret the purchase. But that's in the past... Task now is to get the engine running. I would add that Anderson's have been my choice for working on this car. In fact the xfi was purchased and installed by Bill. Unfortunately, the last time this happened (2020), Anderson's was able to fix it. But no explanation was provided when the invoice ($$$) was paid. Nothing against Bill. He knows this car better than most. Keeping it running has become a serious issue. I should be able to diagnosis this hale without expecting a $$ service charge everytime this happens.
Thanks,
DGC