Car turns over but no fire??

[s3dubbin]

I went and screwed up and spiked the battery on my s3 8p with the wrong terminals now my car wont start? Any ideas would be massively appreciated. Turns over tadadadadatdadada but will not fire? Checked all fuses in engine box and on drivers side cabin but all seem ok? I fitted my new intake and catch can the other day but think it is more likely to be the battery spike? Battery seems good, new plugs and coils. Fault code is terminal 30 low voltage. Cheers, Stevie. 

[MAT ED30]

you tried clearing the code first

[s3dubbin]

Cleared the code last night Mat. Forgot to say the car has been up and running four times......now nothing.

[MAT ED30]

you getting fuel and a spark then?

[s3dubbin]

Loads of fuel, had the pipe off and fuel was pumping, engine bay stinks of it. Plugs out dried and cleaned but no spark.

[MAT ED30]

going to say sounds flooded

[bacillus]

Can you vcds software still connect to the ecu?

[nezquick]

You tried a push start? where you get someone to push or tow you, keep it in second and then lift the clutch up with some gas and turning the key, might work might not?

I did this once in a skoda fabia and worked a treat after driving around for a bit it seemed to sort out what ever problem it had.

[nezquick]

oh and have a look at this

watch from around 1.50 in where it talks about the sparks then use a phone to record the spark plug to see if your sparking

&feature=relmfu

[s3dubbin]

Thanks nezquick I cannot have a look at the vids from work but will have a look when home. A bump start was mentioned last night. Might try that tonight. Just seems a little more serious than that. They keep going on about checking the earths, where are they?

[nezquick]

thats alright mate, yeah have a check tonight - the guy is a little enthusiastic but he makes some good pointers.

When you do bump start make sure its in second not first - if it doesnt start from that then you've probably got a spark problem which is where the second video helps as he shows you how to test if your car is sparking (so use a new spark plug or one you know works) if you get no spark then you have something wrong with the control of the spark i.e. your car isn't sparking because of a problem either mechanical or electrical.

The only other thing I can think of which might of happened (i hope not) that happened to me once was the timing went off and the car refused to start which ended up costing a small f***ing fortune, before It stopped it went into limp mode and cut the speed to thirty but just after I got of the motorway in bristol and lasted enough to get me to the garage, a lot of popping and banging and a really loud idle - loads of people just stared and thought "what the f has he got under that bonnet" (i loved the sound like a old muscle car with that supercharged idle with the rough fast to slow fast to slow lol) and he said it started once afterwards backfired a load and then stopped and wouldnt start. a week later he phoned me and said the chain had jumped some teeth on the timing probably due to the rough idle.

hope it isnt the later and you get it all sorted!

[nezquick]

Thanks nezquick I cannot have a look at the vids from work but will have a look when home. A bump start was mentioned last night. Might try that tonight. Just seems a little more serious than that. They keep going on about checking the earths, where are they?

Did they mean the battery teminal? you need to make sure the poss and neg are attached tightly enough to keep contact. The earth points im not sure but i thought they were normally on the block of modern engines? someone will point you into the write direction on that one.

double check your fuses as well

[s3dubbin]

Seems I hav fried my ecu. Lesson learned! 

[bacillus]

Seems I hav fried my ecu. Lesson learned! 

Sh*t   

This is why I originally asked if you could communicate with the ecu.

[WESTU123]

pm sent maybe be able to help