Member
Hi guys could someone look over these screen shots ? I got a check engine light which indicated a miss fire in cyl 1 as I have 8 spare coils from another engine it was easy to put my hand on one. I swopped it over check light cleared and everything seemed fine.
Today I check it again with inpa and have the same codes. I cleared the codes and looked at the status of the engine in inpa and knock sensor one was giving info ok and no misfires.
When you look at the codes though you will see engine temp @ - 48.00 and 0 supply voltage to knock sensor 1.
Could this be a ecu fault ??
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1999 540 Auto with Eaton M112 supercharger
Airlift 3H/P management, M5 steering box, M5 LSD, Eibach/Dinan front and rear anti roll bars, PM Modifich door boards, 4 Eton 6.5s, Sound Magus VS3500.1, 2 x 10" Kove audio subs, Alpine ICS X7 Headunit, 19" BBS Hammer Sports RT245/RT246, Muffler delete, electric coolant fan.
Member
Bad knock sensor 1.
Replace it. It is a pita to get to it -you have to remove the manifold-, so you might want to do other things "while you are there".
Replace both knock sensors (bank-1 and bank-2 of the engine).
Member
Here is a screen shot of the knock sensors running in status.
I already have a new set of knock sensors that I will be installing when I remove the blower.
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1999 540 Auto with Eaton M112 supercharger
Airlift 3H/P management, M5 steering box, M5 LSD, Eibach/Dinan front and rear anti roll bars, PM Modifich door boards, 4 Eton 6.5s, Sound Magus VS3500.1, 2 x 10" Kove audio subs, Alpine ICS X7 Headunit, 19" BBS Hammer Sports RT245/RT246, Muffler delete, electric coolant fan.
Member
I would recheck the maf wiring,
E85 fueled, Eaton m112 supercharged 4.5L M62TU, TTV racing flywheel, Spec stage 2+ clutch, 88c thermostat, eibach sway bars, wavetrac 3.15 lsd, m5 steering box, Quantum 340lph fuel pump, Dinan camber plates, some powerflex bushings, Supersprint headers, M5 cats, 2001 gas pedal upgrade and many other things done. all diy by me
Member
Maf wiring has been totally replaced right back to the dme.
Sent from my SM-G930F using Tapatalk
1999 540 Auto with Eaton M112 supercharger
Airlift 3H/P management, M5 steering box, M5 LSD, Eibach/Dinan front and rear anti roll bars, PM Modifich door boards, 4 Eton 6.5s, Sound Magus VS3500.1, 2 x 10" Kove audio subs, Alpine ICS X7 Headunit, 19" BBS Hammer Sports RT245/RT246, Muffler delete, electric coolant fan.
Member
Can you swap the knock sensor connectors left-right?
maybe defective maf? I'm sure you know the intake temp sensor is in the maf
E85 fueled, Eaton m112 supercharged 4.5L M62TU, TTV racing flywheel, Spec stage 2+ clutch, 88c thermostat, eibach sway bars, wavetrac 3.15 lsd, m5 steering box, Quantum 340lph fuel pump, Dinan camber plates, some powerflex bushings, Supersprint headers, M5 cats, 2001 gas pedal upgrade and many other things done. all diy by me
Member
The knock sensors cannot be accessed until i remove the blower and that's a right game and new gaskets.
I don't think you noticed, its saying engine temp is -48 not intake temps.
1999 540 Auto with Eaton M112 supercharger
Airlift 3H/P management, M5 steering box, M5 LSD, Eibach/Dinan front and rear anti roll bars, PM Modifich door boards, 4 Eton 6.5s, Sound Magus VS3500.1, 2 x 10" Kove audio subs, Alpine ICS X7 Headunit, 19" BBS Hammer Sports RT245/RT246, Muffler delete, electric coolant fan.
Member
The first screenshot shows intake air temp -48, missed the engine temp, maybe bad sensor there?Originally Posted by Kenny1958
I know how not fun the supercharger removal is, and $500 in gaskets, Jaguar parts are insanely expensive!
E85 fueled, Eaton m112 supercharged 4.5L M62TU, TTV racing flywheel, Spec stage 2+ clutch, 88c thermostat, eibach sway bars, wavetrac 3.15 lsd, m5 steering box, Quantum 340lph fuel pump, Dinan camber plates, some powerflex bushings, Supersprint headers, M5 cats, 2001 gas pedal upgrade and many other things done. all diy by me
Member
I think there must be a short somewhere that might be intermittent and is pulling down the voltage.
1999 540 Auto with Eaton M112 supercharger
Airlift 3H/P management, M5 steering box, M5 LSD, Eibach/Dinan front and rear anti roll bars, PM Modifich door boards, 4 Eton 6.5s, Sound Magus VS3500.1, 2 x 10" Kove audio subs, Alpine ICS X7 Headunit, 19" BBS Hammer Sports RT245/RT246, Muffler delete, electric coolant fan.
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