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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.
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 )
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)
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.
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!
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.
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