Question about 1986 Honda VT 1100 C

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No spark or no fuel pump function - 1986 Honda VT 1100 C

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Could be a worn ignition switch on a bike that old

Posted on Apr 21, 2014

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2 Answers

No fuel pressure and no spark


Fuel and spark circuits tend to be separate. A faulty crank and/or cam sensor will stop the spark and injection signal but unlikely, I think, that it will completely stop the fuel pump.

I am wondering if the immobiliser is disengaging?
A friend with a Kia once left his keys on the kitchen microwave with a similar effect. Fortunately the car was almost new and the dealer took pity on him and reprogrammed the system free of charge.

I suggest you check the fuses. There is sometimes several associated with engine management, fuel pump and suchlike.

Oct 06, 2015 | 2005 Hyundai Tucson

1 Answer

What is the function of the fuel pump and ignition coil pack for my 92 ls 400 lexus


The fuel pump pumps the fuel from the fuel tank under pressure up to the fuel rail and injectors.
The coil packs provide a electrical charge (about 40,000 volts) to the spark plugs. It is this charge that makes the spark plug spark.

May 27, 2015 | 1992 Lexus Ls 400

1 Answer

1988 Ford Ranger 2.9L A/T, 2wd, A/C. Won't Start. Fuel pump does not come on. Scan tool cannot connect to the ECM. Verified Fuel pump Relay good. Ground to STO Fuel pump pin will engage the fuel...


The engine computer must be working to get spark and fuel injector pulse. I would want to know if the computer has power and is functional. The computer grounds the EEC relay and the fuel pump relay as well as the injectors.

Aug 26, 2013 | 1988 Ford Ranger

1 Answer

Mitsubishi Diamante 2001, Car Will Not Start, Attempts to Crank, But no Fire. Blowing Engine Control Fuses repeatedly.


For the sake of completeness, here's the full no-start Troubleshooting Guide for the 2001 6 cylinder 3.5L MFI Mitsu Diamante, but the problem with your car is line item #6 - the ECC (Engine Control Computer) is shorted/dead. Without an ECC, the Diamante will (a) get no spark, since the ignition timing comes from the computer, and (b) get no fuel, since the fuel injectors are operated by the computer as well. The engine will turn over, since running the starter motor is a non-computer controlled matter of a correctly functioning ignition switch, a charged battery, and good wiring to a functional starter motor/solenoid, but will never start.
The clue pointing directly to the ECC failure is the blowing ECC fuses. These fuses are blowing to tell you that the ECC is shorted dead.
Since the ECC is expensive, exhaustively check out all other possible sources of the problems, but with so few problems causing loww of both spark and fuel, combined with the blown ECC fuses pointing directly to the ECC, it seems that the ECC is the only culprit.
Here's a used 2001 Mitsu Diamante ECC at Ebay for $175.

http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=270828804340+&item=270828804340&lgeo=1&vectorid=229466


Priority Action Part Type Cause
1 Inspect Choke - Stuck or Improperly Functioning Choke.
2 Inspect Fuel Filter - Clogged or Dirty Fuel Filter.
3 Inspect Fuel Pump Relay - Faulty Fuel Pump Relay.
4 Inspect Fuel Injector Pressure Regulator - Faulty Fuel Injector Pressure Regulator.
5 Inspect Fuel Pump - Low Fuel Pressure.
6 Inspect Engine Control Computer - Incorrect Operating Information Being Delivered and Sent From The EEC.
7 Inspect Fuel Pump Strainer - Clogged or Dirty Fuel Pump Strainer.
8 Inspect Ignition Switch - Improperly Connected or Faulty Ignition Switch.
9 Inspect Battery - Battery Discharged or Faulty.
10 Inspect Battery Cable - Coroded, Broken, Shorted or Poorly Connected Battery Cable.
11 Inspect Solenoid - Starter Solenoid Faulty.
12 Inspect Starter - Starter Motor Faulty.
13 Inspect Wireset - Worn or Damaged Spark Plug Wires.
14 Inspect Ignition Coil - Faulty Ignition Coil.
15 Inspect Distributor Cap - Loose, Cracked or Worn Distributor Cap.
16 Inspect Spark Plugs - Incorrectly Gapped or Fouled Spark Plug(s).
17 Inspect Distributor Rotor - Loose, Cracked or Worn Distributor Rotor.
18 Inspect Fuel Tank - Fuel Tank Empty.
19 Inspect Carburetor - Worn, Faulty or Damaged Carburetor.

The fuel pump strainer is a sock-like strainer in the fuel tank on the input side of the fuel pump designed to protect the fuel pump by straining out any debris in the tank (similar to the way that the fuel filter protects the engine/fuel injectors/fuel pressure regulator).

Nov 27, 2011 | 2001 Mitsubishi Diamante

1 Answer

1998 Olds Bravada


if you replace module and still had no spark. then it was not the module it could be the ignition coil. you need spark no spark no run...check power to the distrbutor. check that the distrbutor is turning.

Feb 25, 2010 | 1998 Oldsmobile Bravada

1 Answer

2004 chevy aveo won't start. have spark tp plug and can hear fuel pump


1 Inspect Choke Thermostat Stuck or Improperly Functioning Choke Thermostat. 2 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 3 Inspect Relay - Fuel Pumpat Faulty Fuel Pump Relay. 4 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator. 5 Inspect Fuel Pump Low Fuel Pressure. 6 Inspect Engine Control Computer Incorrect Operating Information Being Delivered and Sent From The EEC. 7 Inspect Fuel Pump Strainer Clogged or Dirty Fuel Pump Strainerat.

Aug 31, 2009 | 2004 Chevrolet Aveo

2 Answers

2001 chevy tahoe turns over but wont start


Yes, it's more than likely your fuel pump.

Jul 24, 2009 | 1999 Chevrolet Tahoe

1 Answer

Engine wont start


The spark plugs if they are blackish it means rich on mixture and thus they have fouled up and will give you hard start. If they are brownish whitish tht means they are ok, and if they are whitish means the engine is running lean.
Since you checked the the fuel pump and after removing the pipe fuel gushed out it proves tht the pump is functioning.
Getting back to spark plugs....remove one of the spark plugs and earth it on the cylinder head somewhere and fix the lead head to it and thn crank start the engine and see if theres good bluish sparks at the spark plug.
I would recommend you first to examine the spark plugs , replace them if necessary and try to start it.
Hope this helps!

Jun 15, 2009 | 1999 Yamaha FZX 250 Zeal

1 Answer

Engine cranks but won't start. Fuel pump isn't turning on the on position and no spark going out of distributor. could it be a wiring problem or is my ecm bad?


Check the fuel pumps operational value and, check the fuel pumps fuse and relay. If the fuel pump check out OK, i would then replace the(ecm).

You want to make sure the fuel pump is functional before you replace the ecm. The distributor ha sa on board CMP(camshaft position sensor), that will shut down the spark and fuel pump if it is malfunctioning.

May 31, 2009 | 1987 Ford Ranger

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