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Thread: P0327 Question
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05-28-2016, 07:23 AM #1
- Join Date
- Jan 2010
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- Charlotte NC
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- 62
NBM- 1998 Z28
P0327 Question
I'm having an issue with my 1998 Z28. It started life as an LS1 but then I replaced everything except the crankshaft and pistons with GMPP parts for a 2004 Z06 motor and it runs Great except.........
I had someone tune this and he turned off the knock sensors because he said they were bad.
I replaced the knock sensors and wire harness with AC Delco parts and had another Tuner turn them back on. (99+ sensors and harness)
I'm getting code P0327 only no other codes. I read the GearChatter post on how to test them and I think my results are Good.
Checking at disconnected harness I'm getting 100 KO on each sensor and then I did the AC volt on the meter and knock on the block test and both sensors read the same.
I disconnected the Blue connector from the PCM checked there and got the same results. 100 KO
I removed the PCM and checked between the pins (68 & 69) and the body of the PCM and got 4.83 & 4.84 KO
I'm thinking it's in the tune, am I correct? I get the same reading off each sensor and only 1 throws a code.
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05-30-2016, 02:34 AM #2
I take it that you do not detect any audible knock? Does it trigger all the time or only sporadically?
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05-30-2016, 01:55 PM #3
- Join Date
- Jan 2010
- Location
- Charlotte NC
- Posts
- 62
NBM- 1998 Z28
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05-30-2016, 04:52 PM #4
Do you have any way to see your knock sensor settings in your tune?
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05-31-2016, 06:55 AM #5
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- Feb 2009
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- Florida Man Status Acheivement
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- 11,759
Navy Blue Metallic- 98 T/A w/ mods, 00 FBVert
When I got that code it was because the wire harness slipped while installing the intake back on and got in the flow of the runners and cylinder and burnt the wire.
Might be something as simple as that. ^^It's why I place tape on the harness every time now.http://www.ls1.com/forums/f7/my-6-liter-build-174257/
http://www.ls1.com/forums/f8/my-8-8-rear-build-165553/
6.0L Block - Forged 403ci , Polluter Stg3 Cam, FAST 102mm Intake, NW102 TB, MSD wires, NGK TR6 plugs, Truck Coil Packs, LS3 Fuel Injectors, CC Pacesetter LT Headers, TS&P ORY, QTP e-Cutout, Magnaflow Muffler, 104mm Air Lid & Line Lock, Catch Can, Stage 2 T56 w/Viper shaft, PRO 5.0 Shifter, Tick MC, SPEC Stg3+ Clutch, QT SFI BH, MWC DSL, Full UMI Performance Suspension, Belstein Shocks, Hotchkis Springs (1" Drop), YR1 Snowflake Wheels wrapped in NT555 tires & Custom Fab Ford 8.8 rear w/Wavetrac Diff 3.73 Yukon Gears, WSQ Hood, 3"CM Strange Eng Drive Shaft.
00 FB Vert - Stock
78 FB - Just getting started......
Horsepower never lies, but is often lied about!
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05-31-2016, 02:00 PM #6
- Join Date
- Jan 2010
- Location
- Charlotte NC
- Posts
- 62
NBM- 1998 Z28
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05-31-2016, 02:02 PM #7
- Join Date
- Jan 2010
- Location
- Charlotte NC
- Posts
- 62
NBM- 1998 Z28
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05-31-2016, 04:17 PM #8
I would be more inclined to believe that it is a setting in your tune if they both test ok, however, anything is possible.
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05-31-2016, 04:42 PM #9
- Join Date
- Jan 2010
- Location
- Charlotte NC
- Posts
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NBM- 1998 Z28
That's what I'm thinking, going to try and get a Tuner to check it out as soon as I can get him to see me. Getting to see a Tuner is like trying to get an appointment with my Doctor. I was reading a post where a guy said that when you have a very sensitive sensor you can wrap some black electrical tape around it a couple of turns.
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