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Diagnostic & Repair Tech

HELP! My car is not running right. All about Natural Aspirated OEM Lexus/Toyota V8 Powertrain. Post your N/A car problems here.

Repair & Maintenance Tutorials (DIY)

This sub forum is to help newbies or veterans on basic repairs and maintenances. If you have repair tutorials please post them here.
Threads
31
Messages
158
Threads
31
Messages
158
N
92 sc400 cooling issues/fan speed
Lextreme
  • Sticky
Diagnostic Codes
Replies
11
Views
17K
George_R
George_R
Jay351
1uz running better with AFM unplugged
2
Replies
29
Views
2K
Jay351
Jay351
J
3uz-fe weird idle and throttle lag under 3k rev
Replies
16
Views
2K
Jgrov2
J
M
1UZ going into Limp mode after sustained high rpm
Replies
1
Views
71
Mikeyae86
M
ultrazonerc
UZZ30 Wont rev past 5000rpm - Supercharged 1UZFE Haltech with Water Meth injection
Replies
2
Views
116
ultrazonerc
ultrazonerc
T
92 SC400 Did timing/water pump/ignition system upgrades engine cranks but wont start up
Replies
11
Views
261
TheGreatSamdini
T
W
Missfire when engine runs for a while.
Replies
1
Views
72
gloverman
G
Doug68
1UZ-FE Economy Rebuild - top end service
Replies
0
Views
69
Doug68
Doug68
S
SC400 Vibration Issue w/ 1UZFE
Replies
2
Views
80
Slackful
S
M
3UZ Locked Up?
Replies
1
Views
51
gloverman
G
eicca
My power curve ain't right ('98 1UZ VVTi)
2
Replies
34
Views
2K
cribbj
cribbj
eicca
Momentary crappy idle on cold start?
Replies
1
Views
389
eicca
eicca
jds8086
96 LS400 - "OE Level" Scan tool - No Communication
Replies
1
Views
117
gloverman
G
S
GS400 Brake pedal soft.
Replies
3
Views
310
Spinnetti
S
M
94 SC400 weird trans issues
Replies
11
Views
303
Michael Fodor
M
R
Overheating and head gasket repair
Replies
3
Views
199
Zuffen
Zuffen
M
Oil "Pooling" in top of Head
Replies
0
Views
92
MtyMseHarmer
M
J
p0340 wtf can not remove it even after following procedure
Replies
4
Views
216
Jgrov2
J
J
97 non-VVTi Stalled now No-Start
Replies
4
Views
136
JonnyObnoxious
J
A
Issues with 93 LS400
Replies
1
Views
119
gloverman
G
O
The ECU is activating speed limiter
Replies
9
Views
422
gloverman
G
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