ISTA/D disabling injectors

djgandy · 12-16-2015, 08:52 AM

I think I have a misfire so I fired up ISTA/D last night to have a play and see if there was anything logged.

I noticed that there is an injector disable option and tried this out.

On cylinder 1 it did nothing, so either it didn't work or that cylinder is really dead
On 2 and 3 the engine started vibrating a fair amount.
On 4,5,6 it reported ERROR_ECU_REQUEST_OUT_OF_RANGE.

Has anyone tried this before?

I am wondering if 4,5,6, have newer injectors (I think my car had recall in 2012) and that's why the ECU is not responding?

Phil325i · 12-16-2015, 09:50 AM

It's not that difficult to physically temporarily disconnect each injector in turn if you want to be sure which one is playing up...

djgandy · 12-17-2015, 05:04 AM

Yeah I may well do that at the weekend if there is some daylight!

12-16-2015, 08:52 AM	#1
djgandy Colonel 144 Rep 2,335 Posts Drives: E93 M3 Join Date: Aug 2012 Location: London iTrader: (0) Garage List 2011 M3 [0.00]	ISTA/D disabling injectors I think I have a misfire so I fired up ISTA/D last night to have a play and see if there was anything logged. I noticed that there is an injector disable option and tried this out. On cylinder 1 it did nothing, so either it didn't work or that cylinder is really dead On 2 and 3 the engine started vibrating a fair amount. On 4,5,6 it reported ERROR_ECU_REQUEST_OUT_OF_RANGE. Has anyone tried this before? I am wondering if 4,5,6, have newer injectors (I think my car had recall in 2012) and that's why the ECU is not responding?
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12-16-2015, 09:50 AM	#2
Phil325i Brigadier General 641 Rep 3,219 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	It's not that difficult to physically temporarily disconnect each injector in turn if you want to be sure which one is playing up... __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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12-17-2015, 05:04 AM	#3
djgandy Colonel 144 Rep 2,335 Posts Drives: E93 M3 Join Date: Aug 2012 Location: London iTrader: (0) Garage List 2011 M3 [0.00]	Yeah I may well do that at the weekend if there is some daylight!
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