The code requires that all ungrounded conductors are disconnected. The double pole thermostat that you have described is for a 220v heater.
2 wire method
It is crucial for your 120v heater, that there is 120v from black to white! Not 220v
L1 and T1 pass through when there is a demand for heat
L2 and T2 pass through when there is a demand for heat
A house wired prior to 2008 would have the white wire , wire-nutted through even if it was 220v heater system; Where a house wired after 2008 the white wire would have landed on the L2 and again on the T2
If the supply voltage is 120v; Then you only need the L1-T1 side of the thermostat and the L2 and T2 wires are not needed
With the current code the 220v system is required to break all of the line wires.
220v systems that used baseboard heaters did not require a neutral wire; Instead the white wire carries 120v to ground and the black wire also carries 120v to ground. Across each other they measure 210-240v
(A 120v heater should not be used in this situation)
L1 being black (powered wire) and L2 being white (powered side)
The black of the (heater wire) T1 and the white of the (heater wire)
This method will work on the 120v heater as well but is not required. On a 120v heater the thermostat only needs L1(black powered wire) and T1 (Black heater wire)
The white wires can be wire-nutted together and stuffed in the back of the box
3 Wire method
If there is a red, black , white, and ground in the box; This would be a three wire system.
The black wire will be 120v to ground, the red will be 120v to ground, and the white will be a return path. From black to red will be 220v
Use the black powered wire as L1 and the black of the heater wire as T1. Tie the white of the powered wire directly to the white of the heater wire,
In this situation the thermostat only separates and connects the power wires together when there is a demand for heat.
I have been called a Jack of all trades, but am a master of only one. I will use this blog to answer technical questions to all sorts of repair questions. In order to post a question, all you have to do is post a comment in the form of a question. In the event I can answer it, I will, as will other bloggers using this site.
Tuesday, December 21, 2010
Monday, December 20, 2010
pre 1995 Dodge ECM engine codes
The codes for Pre-1995 Dodge Trucks are retrieved from the ECM, by counting the check engine light flashes.
1.) Turn key on, off, on, off, on......and wait
Then the light will flash for example
On/off/on/OFF......On/off/on/off/on/OFF.............................
This will be a 23 code...
Then it will move on to the next code, until it flashes on a 55 code
on/off/on/off/on/off/on/off/on/off....on/off/on/off/on/off/on/off/on/OFF...........
This will be the 55 code or end of message
So it will read like so
On/off/on/OFF......On/off/on/off/on/OFF............................................
on/off/on/off/on/off/on/off/on/off....on/off/on/off/on/off/on/off/on/OFF...........
.
Below are the OBD DTC's for 1995-previous model year EFI-equipped Dodge vehicles.
11 camshaft signal or ignition signal, no reference signal during cranking
12 memory to controller has been cleared within 50-100 engine starts
13 map sensor not detecting any change during test
14 map voltage too high or too low
15 vehicle speed sensor, no signal detected
16 knock sensor circuit. open or short detected
17 low engine temperature, possible thermostat fault
21 oxygen sensor signal, neither rich or lean detected
22 coolant sensor voltage low
23 air charge voltage high/low detected
24 throttle position sensor voltage high/low
25 automatic idle speed motor driver circuit, short or open detected
26 injectors 1,2,3 peak current not reached
27 injector control circuit does not respond to control signal
31 purge solenoid circuit, open or short detected
32 egr solenoid circuit, open or short detected
33 a/c clutch relay circuit, open or short detected
34 speed control servo solenoid, open or short detected
35 radiator fan control relay circuit, open or short detected
36 waste-gate solenoid, open or short detected
37 part throttle unlock(PTU) circuit, open or short detected
41 charging system circuit not responding to control signal
42 fuel pump or auto shutdown (ASD) relay voltage sensed at controller
43 ignition control circuit not responding
44 battery temperature voltage circuit problem
45 turbo boost limit exceeded-map sensor detects over-boost
46 battery voltage too high
47 battery voltage too low
51 air/fuel at limit
52 logic module fault
53 internal controller failure
54 camshaft reference circuit not detected
55 end of message
61 baro read solenoid, open or short detected
62 emr mileage not stored
63 eprom write denied
64 flex fuel sensor signal out of range
65 manifold tuning valve, open or short detected
66 no ccd messages
76 ballast bypass relay, open or short detected
77 speed control relay, open or short detected
Import Car Code Definition
1 oxygen sensor
2 crank engine sensor
3 air flow sensor
4 barometric pressure sensor
5 throttle positioner sensor
6 motor position sensor
7 engine coolant temperature sensor
8 no.1 cylinder tdc sensor
12 air flow sensor
13 air temperature sensor
14 throttle positioner sensor
15 sc motor position sensor
21 engine coolant temperature sensor
22 crank angle sensor
23 no.1 cylinder tdc sensor
24 vehicle speed sensor
25 barometric pressure sensor
31 knock sensor
32 manifold pressure sensor
36 ignition timing adjustment signal
39 oxygen sensor
41 injector
42 fuel pump
43 egr
44 ignition coil
52 ignition coil
53 ignition coil
55 iac valve position sensor
59 heated oxygen sensor
61 transaxle control unit cable
62 warm up control valve position sensor
1.) Turn key on, off, on, off, on......and wait
Then the light will flash for example
On/off/on/OFF......On/off/on/off/on/OFF.............................
This will be a 23 code...
Then it will move on to the next code, until it flashes on a 55 code
on/off/on/off/on/off/on/off/on/off....on/off/on/off/on/off/on/off/on/OFF...........
This will be the 55 code or end of message
So it will read like so
On/off/on/OFF......On/off/on/off/on/OFF............................................
on/off/on/off/on/off/on/off/on/off....on/off/on/off/on/off/on/off/on/OFF...........
.
Below are the OBD DTC's for 1995-previous model year EFI-equipped Dodge vehicles.
11 camshaft signal or ignition signal, no reference signal during cranking
12 memory to controller has been cleared within 50-100 engine starts
13 map sensor not detecting any change during test
14 map voltage too high or too low
15 vehicle speed sensor, no signal detected
16 knock sensor circuit. open or short detected
17 low engine temperature, possible thermostat fault
21 oxygen sensor signal, neither rich or lean detected
22 coolant sensor voltage low
23 air charge voltage high/low detected
24 throttle position sensor voltage high/low
25 automatic idle speed motor driver circuit, short or open detected
26 injectors 1,2,3 peak current not reached
27 injector control circuit does not respond to control signal
31 purge solenoid circuit, open or short detected
32 egr solenoid circuit, open or short detected
33 a/c clutch relay circuit, open or short detected
34 speed control servo solenoid, open or short detected
35 radiator fan control relay circuit, open or short detected
36 waste-gate solenoid, open or short detected
37 part throttle unlock(PTU) circuit, open or short detected
41 charging system circuit not responding to control signal
42 fuel pump or auto shutdown (ASD) relay voltage sensed at controller
43 ignition control circuit not responding
44 battery temperature voltage circuit problem
45 turbo boost limit exceeded-map sensor detects over-boost
46 battery voltage too high
47 battery voltage too low
51 air/fuel at limit
52 logic module fault
53 internal controller failure
54 camshaft reference circuit not detected
55 end of message
61 baro read solenoid, open or short detected
62 emr mileage not stored
63 eprom write denied
64 flex fuel sensor signal out of range
65 manifold tuning valve, open or short detected
66 no ccd messages
76 ballast bypass relay, open or short detected
77 speed control relay, open or short detected
Import Car Code Definition
1 oxygen sensor
2 crank engine sensor
3 air flow sensor
4 barometric pressure sensor
5 throttle positioner sensor
6 motor position sensor
7 engine coolant temperature sensor
8 no.1 cylinder tdc sensor
12 air flow sensor
13 air temperature sensor
14 throttle positioner sensor
15 sc motor position sensor
21 engine coolant temperature sensor
22 crank angle sensor
23 no.1 cylinder tdc sensor
24 vehicle speed sensor
25 barometric pressure sensor
31 knock sensor
32 manifold pressure sensor
36 ignition timing adjustment signal
39 oxygen sensor
41 injector
42 fuel pump
43 egr
44 ignition coil
52 ignition coil
53 ignition coil
55 iac valve position sensor
59 heated oxygen sensor
61 transaxle control unit cable
62 warm up control valve position sensor
Labels:
auto repair,
check engine light,
dodge codes,
ecm codes,
obd
Wiring a ceiling fan with optional lights, and seperate switches in two gang box.
1. Mount a two gang device box on the stud, at about 48" above the floor, to the top of the box
2. Secure a ceiling fan rated box to the joist,rafters, or trusses. ( add framing as needed to secure box directly to lumber
3 Pull 14-2 wire from a 15 amp circuit, to the two gang box you have just finished putting on the wall
4. Pull a 14-3 wire from the two gang box to the ceiling fan box you have added
5. Expose all of the inner conductors from a 1/4" of the boxes integeral clamp, to expose six inches of free conductor in each location
6. Strip the ends of all conductors, to expose 1/2" bare copper on all wires
7. At ceiling fan box, attach Black to black, white to white, red to blue, and bare to green
8. At the two gang box you will tie all of the white wires together under one wire nut (tan)
9. You will need to make two six inch pieces of black wire, strip both ends. then tie one end of each piece together with the black wire that comes out of the 14-2 (power in)
10. Tie all of the bare conductors together with two 6" tails (intended to land one on each switch, under the green screw)
11. Land the black wire from the 14-3 ( from ceiling) to a brass screw on one of the switches. Then land one of the powered pig tails on the remaining brass screw of the switch
12. The remaining red wire will land on one of the brass screws, and the remaining black (power pig tail) will land on the last brass screw.
13. install all switches , and the fan on the ceiling
14. Attach the 14-2 intended to power up your project to a powered outlet on a 15 amp circuit, matching colors as well
Labels:
ceiling fan,
diy,
do it yourself,
electrical,
three wire,
two switches,
wiring fan
Sunday, December 19, 2010
Finding the number one position on Chevy HEI Distributor
1. First you must locate the number one cylinder. (This will be the drivers side plug, closest to the front of the engine.)
2. Remove the coil and distributor cap and have an assistant rotate the engine by using the starter. (observe the location and rotation of the rotor and the engine pulleys)
3. Now remove the furthest front spark plug on the drivers side of the car and lower a long screw driver into the hole.
4. Using a six point socket and a rachet. rotated the engine slowly in the direction the pulleys were spinning durring starter function. ( This will be an easier task with all of the spark plugs removed from the head )
5. Carefully watch the screwdriver for change in elevation with the rotation of the engine.
6. Observe the line marked on the harmonic balancer pulley. As this line approaches the teeth on the timing stand off, So will the piston be reaching the Top Dead Center (TDC) location, and so will the rotor be pointing nearest the #1 plug wire post.
7.Finally, the screw driver will reach its furthest "TOP" point, and under the valve cover, the two rockers to that cylinder will be loose (if you want to expose that)
8. Looking at the rotor and which post it is pointing at,eill expose the Number one position.
9. Back the timing line off the TDC mark by about six degrees , or three marks and twist the distributor itself into the position that lines the rotor up with a post towards the center of its twistable range.
10. Install the distributor cap and place number one wire on the post directly over the rotor tip. THAT IS WIRE ONE LOCATION
11. Following the direction of the rotor rotation, install wire eight, then four, three, six, five, seven , and two
Other usable tid=bits
In some cases, the cylinder number might be cast on the intake port right above the cylinder.
The distributor rotation may also be indicated, by having an arrow cast onto the intake manifold, near the distributor
Labels:
305,
350,
400,
auto repair,
Chevrolet,
coil,
distributor,
distributor cap,
firing order,
HEI,
ignition,
plug wires,
Silverado,
small block chevy,
spark plug,
timing
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