@micks.mechanical: 3.8L ecotech has had all the common components replaced and still has a misfire. Id love to sort this car out for the customer. As stated the vehicle has had a new set of spark plugs and leads all the coilpacks and injectors a dfi module and an intake gasket. I replaced the crank angle sensor yesterday after getting a history DTC for crank position. Ive been rechecking alot of work on this car and cant confidently pick a diagnosis path. What do you reckon? #mechanic

Micks Mechanical Perspective
Micks Mechanical Perspective
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Region: AU
Tuesday 06 August 2024 06:11:49 GMT
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why73yy
WHY73Y :
Have you checked fuel pressure/filter, misfiring under load sounds like a fuel issue, instead of throwing parts at it maybe diagnose the problem first
2024-08-07 20:26:34
15
92_vp_falcadore
92_VP_FALCADORE :
comp test it, could be a leaky valve
2024-08-06 07:28:18
13
skullfumble
Nicholas Croft :
Mine did this. Was a combination of the throttle pedal sensor and the idle air control valve. Hopefully that helps
2024-09-17 12:47:11
0
itsrekm
ITSREKM :
Blocked cats ?
2024-08-06 06:51:54
11
postyz1
Dan :
harmonic balancer mate
2024-08-06 14:23:38
1
holdenvess76
HOLDEN76 :
put new plugs
2024-08-06 17:34:06
1
jayden4414
jayden4414 :
Harmonic balancer on correctly?
2024-08-06 07:08:08
1
bencook399
bencook399 :
what plugs are in it? always easy things first mate throw a set of ngks in it
2024-08-06 08:45:33
3
jaxon.budick
Jaxon :
Mine did the same thing, the cat converter was blocked up man.
2024-09-08 13:27:49
0
trevorkidd618
trevorkidd618 :
cat is blocked
2024-08-06 08:41:04
1
lukehardy133
lukehardy133 :
How’s it run with the maf sensor undone?
2024-08-07 08:57:26
0
elpope1991
kane :
knock sensors had same issue with my vx
2024-08-07 07:55:09
1
titanmonoco
itsajury :
how did you test the hd lead to be faulty bro?
2024-08-17 01:45:16
1
lets_colllect_this_bread
lets_colllect_this_bread :
Try 98 instead of 91
2024-08-06 22:56:33
1
nickdigby7
Nick Digby :
Could be aftermarket injectors had that issue before
2024-08-06 19:42:21
1
pipedream.driftin
PipeDream Drifting :
tried the tps or iacv?
2024-08-07 06:02:24
2
holdenforlife
1995_vs_executive :
Purge valve sensor or mag sensor
2024-09-02 21:27:49
1
wayne_kingktiktok
wayne :
sell it
2024-08-07 12:03:27
1
aaron.azza
_-AzTeK-_ :
oh I know what the problem is.... it's a Holden 😂
2024-08-06 08:33:17
3
887799kj
azza887766 :
cylinder leak test sounds like could be a burnt valve these old bombadores were common for it back in the day
2024-08-06 09:04:29
3
oldkiddtassieboy1
skippy :
valley cover gasket 💯 put money on it.
2024-08-07 07:49:57
1
bryan.h83
Bryan.H83 :
check fuel pressure an flow?
2024-08-06 19:10:34
4
thisis_mylifestory_clint
this is my life story (clint). :
those dual coil packs can have one side dead i had that problem in vs spac
2024-08-06 20:01:48
2
mikig86
Miki 🇷🇸 :
change the engine. cheaper
2024-08-07 03:17:38
1
paulsorro
Paul Sorro :
it's a Holden what can I say🤣
2024-08-06 20:04:00
1
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