Question about 1988 Volkswagen Cabriolet

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I have no spark at plugs

May be a fuse or a black box nr fuses

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  • Charlie Troy
    Charlie Troy May 11, 2010

    What type of vehicle? I need way more info than you provided.



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  • 351 Answers

Could be the coil or maybe the distributor cap carbon tip has broken

Posted on May 10, 2009


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James what can I do to check coils on ,2003 accord lx 2.4

Not James, but maybe I can help: Under the dash in the fuse/relay box is the ignition coil relay. This sends battery voltage on the black/white wire to all four coils. With key in on, all 4 coils should have power to them on this black/white wire. If no power, check fuse #2, a 15 amp fuse which sends power to the ignition coil relay, and on to the coils when the relay is energized by the ecu/pcm. Only thing else to cause spark is when the ecu/pcm sends a signal to the coil's Ignition Control Module (housed inside each coil assembly), which controls the primary circuit (the black/white wire), and causes high voltage to the spark plugs.

So check the black/white wire to the coils. If power there with key in on, check for spark at a spark plug when cranking the engine over. If power to coils but no spark, possibly a crankshaft position sensor or cam position sensor giving a bad signal to the ecu/pcm. Good luck.

Sep 01, 2015 | Cars & Trucks

1 Answer

No power on spark plugs

all cars must crank first, if no crank it can never start
unless its a M/T car (stick) and you push start it.
it cranks robustly, i will ASSUME.
since you said spark is dead, on all 4 spark plugs??? or just one.
no power?, spark has 2 powers.
the primary side, and the high voltage (danger) side.
i guess you meant no HV spark but on how many?

with all electrical failures, the first step is, check all fuses.
open the glove box ,extract the oper guide and read the page called fuses. shows them all, in cab and engine bay.
are they good.? Use and ohmmeter, to test fuses.
fuse that look bad are, fuse that look good, can be bad,

if all spark is dead on all 4 spark plugs, the CKP sensor my be dead,
2.0L engine? I4, has 4 spark plugs. (with COPS)
Check list:
1: all fuses good.
2: dash lamps work and head lights, engine cranks FAST. (normal)
3: key on, (noat cranked) CEL lamp comes on, does it? if not, the ECU is dead. (or fuse blown to PCM )

4: all spark dead? yes? then, attach any $9 scan tool, is RPM showing while cranking, for 5 seconds,
yes, CKP is ok (CKP is the CRANK sensor.
no, its dead. and see P0340 and 355s DTC codes, BINGO!that!
see scootty?

dumb questions, using a strobe light does not prove out spark !
can i assume the spark test is with real test spark plug ?
not other ways? (say so) use a real spark plug to test spark.
with proper gap set and shell of spark plug grounded.
in the USA, (not stated ) the 2L has 4 COP coils
we must check spark at each end of each COP tip (boot end).
if JUST (say)#1 is bad, that is TYPE A failure (a bad cop?)
if all 4 are dead? that is TYPE B failure.
bad CKP, or bad CMP
in english , bad cranks sensor or bad cam (I) sensor.

the FSM is online, and the tests are there, a real FSM is the best
doing DIY work with out the book is near impossible,
and 10x that , after 2004 or so (insane complexity began)
some cars have immobilizers. or alarms that cut spark.
i cant see your car or its options....
i can only presume you read the operators guide, and watched the dash lamps as it instructs you.
keep in mind all web help is blind. and in this complex world , makes for bad advice (even mine)

Nov 09, 2013 | 2010 Suzuki SX4 2.0

1 Answer

1991 chevy 1500 no power to radio fuse

if you got a spark when you touch it to the side (which is the ground) the wire is a power source that should go to the terminal at the back of the lighter. there is no relay for this circuit so change the new fuse it's blown and check for burnt wires.

Apr 25, 2010 | 1991 Chevrolet C1500

3 Answers

Rear wiper has stopped working in audi a3 - where and how do i change the fuse? the washers have also stopped at the same time. would this be the same fuse?

Yes, is the same fuse nr.41 (15A) !
For Audi A3 the fuse box is located on the left side of dashboard behind a plastic cover (for left hand steering wheel vehicle). On inner face of the plastic cover you will find the fuse diagram.
The fuse nr.41, (the second fuse from right to left direction, on the second row from bottom to upper direction, on the fuse box), F41 (15A) = Rear screen wash & wipe system !!!
Replace blowed fuse with new one and problem will be solved quickly !
Please rate my response. Thanks!

Apr 07, 2010 | 2005 Audi A3

1 Answer

I'm looking for the fuse identifier for a dipped headlight on my A4.And any troubleshooting advice id welcome. Thanks.

For Audi A4 the fuse box is located on the left side of dashboard behind a plastic cover (for left hand steering wheel vehicle). On inner face of the plastic cover you will find the fuse diagram.
First fuse on first row from left upper corner is Fuse Nr.20 = F20 (15A) - RH headlamp low beam, headlamp adjustment.
First fuse on second row from left upper corner is Fuse Nr.21 = F21 (15A) - LH headlamp low beam, headlamp adjustment.

Jan 24, 2010 | 2004 Audi A4

2 Answers

No spark to the plugs.

Check fuses inside the engine compartment. Remove each one, and plug it back in, to make sure it has a good contact.

Oct 01, 2009 | 1993 Dodge Dakota

2 Answers

We cant find fuse box & gap in plug wires

Fuse box is under L/F corner of dash . Gap in spark plug wires ???? SPARK PLUG gap is 0.35

Apr 22, 2009 | 1983 Cadillac Fleetwood

1 Answer

Finding fuse box on 1983 fleetwood classic & gap needed in plug w

There are 3 or 4, 7mm screws holding a black plastic panel under the dash. you have to reove those to get to the fuse box which is right next to the parking brake. There are two fuse boxes. A main box and a relay box which has a fuel pump fuse and injector fuses. Most spark plugs come pre-gapped to factory specs Gap 0.06

Apr 22, 2009 | 1983 Cadillac Fleetwood

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