maybe an easy question but will a malfunctioning or absent cam or crank sensor in 1jz cause no spart from the coils? like no spark at all
cam/crank sensors
- Thread starter Pernilongo
- Start date
tlo86;1369321 said:
I was missing a spark. and i was going through 2jzge IG pdfs and it said to check the the sensors. turns out i didnt connect one of the knock sensors. thats why it wasnt firing. thanks for the reply.
tissimo;1369946 said:
Really? i dont know, thats the only sensor that was disconnected and after i connected it the coils started firing right away.
Pernilongo;1370061 said:
The sensors near the cam covers are not knock sensors. Neither is the sensor down by the alternator. Those are the cam/crank sensors.
tissimo;1370344 said:
Yes i know the one by the alternator is crank sensor and the one by cam covers is cam sensor thats what i thought at first. but theres also a knock sensor right by the starter and one by the power steering pump. thats what it was. I traced it with the multimeter from the plug to the pin 29 at plug c88 34 pin. And yes i'm sure it was a knock sensor. :icon_bigg
1JZGTE VVTi Computer
Plugs C88 (34P) C84 (22P) C85 (16P) C86 (28P)
Plug C84 - 22pin
Throttle Position Sensor C50-4 VC C84 1 BL-Y
Blank C84 2
Clutch Speed Sensor NCO- C84 3 Gr
ECT Speed Sensor SP2- C84 4 R-Y
Engine Speed Sensor NE C84 5 Br
Sensor Common NE- C84 6 B-R
Throttle Position Sensor VTA C84 7 Y
Airflow Meter C98-2 VG C84 8 R-W
ECT Speed Sensor SP2+ C84 9 BL-Y
Cam Position Sensor G2 C84 10 BL
Cruise Control Computer IDL C84 11 Gr-Y
Throttle Position Sensor VTA2 C84 12 Y-R
Oxygen Sensor OX1 C84 13 W
Traction Control Computer VT02 C84 14 Br-W
Clutch Speed Sensor NCO+ C84 15 R
Igniter C104-5 IGT3 C84 16 BL-W
Igniter C104-6 IGT2 C84 17 R-B
ECT TDCL OIL C84 18 Y-Gr
Oxygen Sensor Heater HTR C84 19 R-BL
Water Temp Sensor THW C84 20 Gr
Airflow Meter C98-3 THA C84 21 Y-B
Throttle Sensor Common E2 C84 22 Br
Plug C85 - 16pin
Traction Control Computer NEO C85 1 P-BL
Main Relay via CA2-8 MREL C85 2 B-OR
TDCL via CI1-18 W C85 3 BL-Y
Fuel Pump Control Relay D1 C85 4 P
Diagnostic Connector TE1 C85 5 LGr
Blank 6
Traction Control Computer EFI+ C85 7 W
VSV Heat Pressure Valve FPU C85 8 BL
Traction Control Computer FAIL C85 9 W-Gr
Fuel Pump Control Relay TPC C85 10 R-W
Traction Control Computer EFI- C85 11 B
VSV Air Bubble EVAP C85 12 Gr-B
Blank 13
VSV (ABV) WGV C85 14 Gr-R
Blank 15
Blank C85 16 N/A
Plug C86 - 28 pin
TDCL via CI1-5 TT C86 1 Gr-R
Neutral Start Switch L C86 2 W
TO CI1-3 P C86 3 Gr-Or
Blank C86 4
A/C Magnetic Clutch ACMG C86 5 W
Meter Check Computer OD2 C86 6 G-R
Cruise Control Computer ECT C86 7 Br-Y
Cruise Control Computer A/D C86 8 Gr-Or
Ignition Switch Power IGSW C86 9 B-OR
Neutral Start Switch S C86 10 Gr
TDCL via CI1-2 TE2 C86 11 Gr-Y
Speed Signal from comb. meter SP1 C86 12 P
Diagnostic Connector + CI2-9 CCO C86 13 LGr-B
Power Supply from EFI Fuse BATT C86 14 B-Y
Blank 15
Blank 16
Traction Control Computer ABS C86 17 R
Traction Control Computer EFIF C86 18 G-BL
Blank C86 19
A/C Computer via CH1-5 A/C C86 20 BL-R
Blank C86 21
Switched power from Main Relay B+ C86 22 B-R
Switched power from Main Relay +B1 C86 23 B-R
Blank C86 24
From CF1-7 Stop Switch STP C86 25 Gr-W
Blank C86 26
A/C High Pressure Switch ELS3 C86 27 W-R
from Relay Block 4 via CF2-11 ELS C86 28 R-Y
Plug C88 - 34 pins
ECT TDCL SLT+ C88 1 W-Gr
No 4 ECT TDCL SLT- C88 2 Y
Traction Control Computer VT01 C88 3 Pu
No 3 ECT TDCL SLU+ C88 4 B
Injector #60 C88 5 R-W
Injector #50 C88 6 W-BL
Injector #40 C88 7 R-B
Injector #30 C88 8 B
Combination Meter ECW C88 8 W-R
Injector #20 C88 9 W
Injector #10 C88 10 Y
No 1 ECT TDCL S1 C88 11 LGr
Igniter C104-4 IGF C88 12 Gr-R
Starter (Manual) STA C88 13 B-W
Starter (Auto) NSW C88 14 B-W
VVT Solenoid C101-2 OCV- C88 15 P
VVT Solenoid C101-1 OCV+ C88 16 R
No 2 ECT TDCL S2 C88 17 R-W
Traction Control Computer ETC+ C88 18 OR
Diagnostic Connector VF C88 19 BL-B
Idle Speed Control ISC4 C88 20 BL-W
Idle Speed Control ISC3 C88 21 Gr-Y
Idle Speed Control ISC2 C88 22 Y-Gr
Idle Speed Control ISC1 C88 23 P
Igniter C104-7 IGT1 C88 24 BL-R
Traction Control Computer E1 C88 25 W-R
Airflow Meter EVG C88 26 BL-B
Traction Control Computer ETC- C88 27 W
ECT TDCL SLU+ C88 28 Gr-W
Knock Sensor KNK2 C88 29 W
Knock Sensor KNK1 C88 30 W
Traction Control Computer IDL2 C88 31 BL-Y
Throttle Position Sensor IDL C88 32 R
Earth CG E02 C88 33 W-B
Earth CG E01 C88 34 W-B
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Haha, just making sure.
Check your grounds at the bottom of the intake manifold. If you were in that area maybe they weren't making good grounds and when you put your hand down there you bumped them a tad to get a better contact.
Check your grounds at the bottom of the intake manifold. If you were in that area maybe they weren't making good grounds and when you put your hand down there you bumped them a tad to get a better contact.
tlo86;1370621 said:
It was the first time that it started. i tried to start the engine for two days before that. i wouldnt even pay attention to that plug but for the colour of the wires. the knock sensors are the only once with the clear wires, so they are easy to spot. besides i have like 6 other unused plugs hanging in the same area LOL. for those two days i traced everything to the ECu checked all the grounds and 12+ wires , the usual enchilada when you dont have a spark.