c16xe not starting

[christian1992]

I've got a c16xe but it won't start it cranks over there's a spark and there is fuel to the fuel rail does anyone have any ideas, all the earths have been checked

[jonn]

can you flash the ecu for codes? is it in a nova? could be crank sensor

[christian1992]

Not yet tried to flash it is in a nova got annoyed with it before so give up to try another day lol

[Novasport]

Is fuel getting into the cylinders? Is timing correct? Plug leads & injector plugs all on the right way?

[jonn]

if the fuel and spark is perfect i would put my money on crank sensor. they can cause all sorts of problems, not starting and rev limiting at 5k

try and flash the ecu. was it running in the nova before?

[christian1992]

No its not been running in the nova its only been on there for two weeks not too sure if the fuel is getting into the cylinders but the timing is spot on and all the wires seem to be in order on the injectors

[Southie]

Is it definately a C16xe and not a X16xe? What colour connections are on your ecu?

If a C16 try some extra earths say from the alternator and a extra one to the battery.

[Novasport]

If everything else is spot on, try a crank sensor as advised by Jonn.

[Southie]

Another thing to try is the thin black wire that usually connects to the back of the inlet manifold, they are usually a o-ring and have a bad connection so get some sandpaper out and clean the inlet and the connector to get a better earth.

[jonn]

if you check spark plugs you might see if they have fuel on them.

does the c16xe use a chip and transponder? if it does make sure that the chip is in the right position on the transponder.

recheck your wiring, earths, gearbox earth strap aswell

[Southie]

The C16xe doesn't use the chip and transponder ;)

[christian1992]

Yes it is deffinatley the c16xe red and blue plugs on the ecu, I put new earth straps on today aswell as earthing it direct to battery, I'll flash the codes see what I end up with but probably crank sensor as been advised by a dew people thanks

[Southie]

Here are the codes when you read them off then:


C16xe FAULT CODES

* GM-Multec Code Chart:

Code: Item:
Fault:

12 Initiation of diagnosis. n/a
13 Oxygen sensor No change in voltage/open circuit.
14 Coolant Temperature Sensor (CTS) Low voltage
15 Coolant Temperature Sensor (CTS) High voltage
16 Knock signal circuit n/a
18 Knock control processor n/a
19 Crank Angle Sensor (CAS) Incorrect RPM signal
21 Throttle Potentiometer Sensor (TPS) High voltage
22 Throttle Potentiometer Sensor (TPS) Low voltage
24 Vehicle Speed Sensor (VSS) No speed signal or low voltage
25 Injector valve Low voltage
28 Fuel pump relay contacts Contact problem
29 Fuel pump relay Low voltage
32 Fuel pump relay High voltage
33 Manifold Absolute Pressure (MAP) sensor High voltage
34 Manifold Absolute Pressure (MAP) sensor Low voltage
35 Idle stepper motor Poor or no idle speed control
41 Amplifier control signal, cylinders 2 and 3 (Direct Ignition System (DIS)) High voltage
42 Amplifier control signal, cylinders 1 and 4 (Direct Ignition System (DIS)) High voltage
43 Primary ignition (distributor systems) High voltage
44 Oxygen sensor Air/Fuel mixture too lean (weak)
45 Oxygen sensor Air/Fuel mixture too rich
46 Amplifier (Direct Ignition System (DIS)) control signal (A+B) High voltage
47 Linear exhaust gas re-circulation (EGR) position n/a
49 Battery supply to Engine Control Unit (ECU) High voltage (greater than 17 volts)
51 Engine Control Unit (ECU) Defective ECU (disconnect and reconnect (ECU), then recheck for fault codes). Memory failure
52 Secondary air pump relay Low voltage
53 Secondary air pump relay High voltage
54 Idle Carbon Monoxide (CO) potentiometer n/a
55 Engine Control Unit (ECU) fault Renew Engine Control Unit (ECU)
56 Air control soleniod Low voltage
57 Air control soleniod High voltage
61 Fuel tank vent valve (FTVV) Low voltage
62 Fuel tank vent valve (FTVV) High voltage
63 Amplifier control signal, cylinders 2 and 3 (Direct Ignition System (DIS)) Low voltage
64 Amplifier control signal, cylinders 1 and 4 (Direct Ignition System (DIS)) Low voltage
65 Primary ignition (distributor systems) Low voltage
66 Throttle position sensor (TPS) Hose broken
67 Air Flow Sensor (AFS), hot wire meter (air mass meter) Signal is outside normal operation parameters (out of range)
68 Air Flow Sensor (AFS), hot wire meter (air mass meter) Faulty air mass meter signal, incorrect frequency
69 Air Temperature Sensor (ATS) (MPi only) Low voltage
71 Air Temperature Sensor (ATS) (MPi only) High voltage
72 Amplifier (Direct Ignition System (DIS)) control signal (A+B) Lead interruption, open circuit
75 Torque control (Automatic Transmission (AT) only) Low voltage
76 Torque control (Automatic Transmission (AT) only) Continuous
81 Injector valve High voltage
83 Immobiliser No or wrong code
84 Immobiliser No signal
85 Immobiliser Wrong signal
87 Air conditioning cut-off relay Low voltage
88 Air conditioning cut-off relay High voltage
92 Camshaft sensor Faulty hall effect sensor or circuit
93 Quad drive module (in ECU) n/a

[nova gem 1970]

c16xe ecus ,dont use transponders,could well be the crank sensor