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How do I remove the mic from MG Electronics PGM-25MIC megahone?

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Honda h22 5 speed


stalls. ( ever tune it up,at the 60k service points? )
what year, no year , no joy, 1978 to 2001 , lots huh?

and what engine option, displacement (size)

over 10 engines
Third-generation Honda Prelude engines:
B20A/B20A1 - 2.0L DOHC PGM-FI 143/160 hp (Japan/Europe)
B20A3 - 2.0L SOHC 12v carb 104 hp North America
B20A4 - 2.0L SOHC 12v carb Global, except North America
B20A5 - 2.0L DOHC PGM-FI 135 hp (101 kW) North America
B20A6 - 2.0L DOHC PGM-FI 142 hp (106 kW) Oceania
B20A7 - 2.0L DOHC PGM-FI 150 hp (110 kW) Europe
B20A8 - 2.0L DOHC PGM-FI 133 hp (99 kW) Europe
B20A9 - 2.0L DOHC PGM-FI 140 hp (100 kW) Europe
B21A - 2.1L DOHC PGM-FI 145 hp (108 kW) Japan (SI States)
B21A1 - 2.1L DOHC PGM-FI 140 hp (100 kW) North America

Jan 11, 2014 | Honda Prelude Cars & Trucks

1 Answer

I have a 1996 Acura 3.5 R.L. just put a new fuel pump in and it won't start. It turns over, but will not stay started.


Check your main fuel relay.



Fuel Supply System


PGM-FI Main Relay


Description


This PGM-FI main relay is located behind the dashboard


lower cover. The PGM-FI main relay actually contains


two individual relays. One relay is energized whenever


the ignition is on. It supplies battery voltage to the PCM,


power to the fuel injectors, and power for the second


relay. The second relay is energized for 2 seconds when


the ignition is switched on, and when the engine is running.


It supplies power to the fuel pump.


PGM-FI


MAIN RELAY



FUEL


PUMP


RELAY


Relay Testing


NOTE: If the engine starts and continues to run, the PGMFI


main relay is OK.


1. Remove the PGM-FI main relay.


2. Attach the battery positive terminal to the No. 3*


terminal and the battery negative terminal to the


No. 2* terminal of the PGM-FI main relay. Then


check for continuity between the No. 5* terminal and


No. 2 terminal of the PGM-FI main relay.


• If there is continuity, go on to step 3.


• If there is no continuity, replace the relay and


retest.



*: 8P CONNECTOR


To FUEL PUMP


3. Attach the battery positive terminal to the No. 4 terminal


and the battery negative terminal to the No.


7* terminal of the PGM-FI main relay. Then check


that there is continuity between the No. 3 terminal


and No. 1 terminal of the PGM-FI main relay.


• If there is continuity, go on to step 4.


• If there is no continuity, replace the relay and


retest.


4. Attach the battery positive terminal to the No. 1 terminal


and battery negative terminal to the No. 2*


terminal of the PGM-FI main relay. Then check that


there is continuity between the No. 5* terminal and


No. 2 terminal of the PGM-FI main relay.


• If there is continuity, the relay is OK;


If the fuel pump still does not work, go to Harness


Testing on the next page.


• If there is no continuity, replace the relay and


retest.



To PCM CONNECTOR


TERMINAL A4


To ST. SWITCH


To GROUND


To IGN. 1 To BAT


To PCM


CONNECTOR TERMINALS


A13 and B1


FUEL PUMP


RESISTOR


FUEL PUMP

Sep 18, 2013 | 1996 Acura TL Series

1 Answer

Mg tf 160


lovely job to do you are ment to remove the whole rear end complete with engine/gearbox . but you can do it by removing the rear suspension arms/ drive shafts and moving the gearbox into the subframe and work through the space between engine/gearbox, its tight but can be done

May 18, 2013 | 2005 MG ZR

1 Answer

How to re set immobaliser on 2004 MG ZR


We can help with that but you will have to contact us direct . You can try removing the negative lead for a minute or two and that may work. Failing that email us info at remobilise dot co dot uk

Apr 07, 2013 | MG ZR Cars & Trucks

2 Answers

Show me a picture where the fuel pump relay is located on 1994 Acura Legend?


selectachapter.gif

Acura Coupes and Sedans 1994-2000 Repair Information

PGM-FI Main Relay

Print
This relay is located behind the dashboard's lower cover. It consists of two individual relays. One is energized whenever the ignition is ON , thus supplying battery voltage to the Powertrain Control Module (PCM). This relay also supplies voltage to the fuel injectors, and power to the second relay. The second relay is energized for two seconds, when the engine is turned ON , to power the fuel pump.
See Figure 1

0900c1528008be04.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: Schematic of the PGM-FI relay
Testing
If the engine starts and continues to run, the PGM-FI relay is working and does not need to be replaced.
See Figure 2

0900c1528008be05.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: PGM-FI relay terminal numbers

  1. Remove the relay.
  2. Apply battery voltage to the number three terminal.
  3. Ground the number two terminal.
  4. Check for continuity between terminals five and two.
  5. If continuity is detected, proceed to the step 7.
  6. If there is no continuity, replace the relay.
  7. Connect the number four terminal to the positive side of the battery.
  8. Ground the number two terminal of the relay.
  9. Check for continuity between the number five terminal and the number two terminal of the relay.
  10. If there is continuity, the relay checks out "OK". If the fuel pump still does not work, test the harness.
  11. If there is no continuity, replace the relay and retest.

Mar 11, 2013 | Cars & Trucks

1 Answer

How do take out the headlights on a 1979 MG?


Insert a flat blade screwdriver under the inside lip of the chrome rim and it will pop out. Then loosen the three screws around the headlamp retainer and move to the left ( might be right ) and the retainer will slide off the loosened screw and allow removal of the headlamp.

May 20, 2012 | MG B Cars & Trucks

1 Answer

Zs mg rover fan heater risistor not working just not getting no electric feed to it and the fuse is ok.


A very common fault this one, that is easily fixed. On older cars the heater fan speeds one and two often fail, due to the resistors burning out. This applies to most of the MG Rover cars of the 90's and 2000's so Rover 200, 25, 45, 400, MG ZR, ZS, MGF and MGTF.
Buy three bigger resistors of value 0.68 ohm and wattage 10 watts, from eBay or an electronics store.
Most of the video here is an MG ZR, apart from the MG TF at the start but it is similar for all models. The MG TF took marginally longer due to the slightly more hidden location of the resistor pack. You need to remove a short vent pipe as well as the glovebox cover on that car.

Oct 09, 2011 | Cars & Trucks

1 Answer

Car cranks but dose not start, there is no power to distributator or fuel pump


I suspect the at this point, the main relay is defective. This relay controls power to fuel and spark circuits.

The PGM-FI Main Relay is actually comprised of two individual internal relays. When the ignition switch is initially turned ON , the Powertrain Control Module (PCM) supplies ground to the PGM-FI Main Relay. This ground triggers one of the PGM-FI internal relays that sends battery voltage to the fuel pump for two seconds to pressurize the fuel system.
When the engine is running the PCM supplies a continuous ground to the PGM-FI Main Relay. The supplied ground keeps the relay in the "closed" position providing electrical current to the fuel pump, keeping the fuel loop pressurized while the engine runs.
If the engine is not running with the ignition on, the PCM cuts the ground to the PGM-FI Main Relay, causing the relay to "open" and stop the electric current flow to the fuel pump. As mentioned previously, if the engine is not running, the PCM will only supply ground to the PGM-FI Main Relay for two seconds when the ignition switch is initially switched to the ON position.
The PGM-FI Main Relay also supplies electrical power to the Idle Air Control (IAC) Valve and to the fuel injectors.

TESTING


If the engine starts and continues to run, the PGM-FI Main Relay is working and does not need to be replaced.
  1. Locate and remove the relay.

On some models of the Civic and Civic del Sol it is located to the left of the steering column under the dash. Many later models position it either near the passenger right side kick panel under the dash or by the driver left side kick panel up under the dash.
  1. Attach the battery positive terminal to the No. 2 terminal.
  2. And the battery negative terminal to the No. 1 terminal.
  3. Check for continuity between terminal No. 5 and 4.
  4. If there is no continuity, replace the relay and retest

Aug 05, 2010 | Honda Civic Cars & Trucks

2 Answers

Buzzing fuel pump


sounds like the fuel pump relay is stuck on. find the relay and replace it. hope this helps mike

Jun 16, 2009 | Acura TL Cars & Trucks

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