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Alan L Alan L is offline
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Join Date: Apr 2006
Location: New Zealand
Posts: 2,809
This is exactly the problem I had with my injector UTCIS. I spent quite a bit of time with UT trying to rectify it. They wanted a restrictor in the line from the fuel head to the pressure sensor. Their initial conclusion was my fuel head had minimal leakage - less than their bench test model. This may be correct as I had made a new metering piston. Eventually I got down as far as an orifice like 20 thou from memory - would have to check my emails. UT then made some firmware changes, then asked for the unit to be returned. That was a year or more ago. No more progress apparently.
I have some of the tests recorded somewhere if any use.
Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-)
Old 09-07-2014, 01:38 AM
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