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View Full Version : Help with nasty miss!



NoFlyZone
12-28-2005, 08:51 AM
It seems after my 1.8 motor is warmed up and under hard acceleration I am experiencing a bad miss. Perhaps a coil pack is going bad?

mike-2ptzero
12-28-2005, 09:18 AM
Is it showing a code with the vag and have you changed your plugs lately?

NoFlyZone
12-28-2005, 10:15 AM
My plugs have about 25K on em. Just pulled the plugs and noted an excessive gap on one. Maybe I should change the set.. Iridiums are EXPENSIVE however. Thinking of changing the coil packs. Haven't checked codes lately but the last check told me I had a miss in number 3 cylinder. Cannot find the #%&@! firing order ANYWHERE

BranCKY3
12-28-2005, 12:05 PM
Just change the plugs, get some NGK BKR7E's.

trailboss
12-28-2005, 12:13 PM
Get 6E's, 7E's are a heat range colder. Unless you have a BT.

turbojunkie
12-28-2005, 12:16 PM
Originally posted by NoFlyZone
Cannot find the #%&@! firing order ANYWHERE


1342

badassbaldie
12-28-2005, 12:16 PM
I would stay away from the Iridiums if yours is a 1.8t. The NGK BKR7Es as BrankCKY suggested will work. Iridiums are OK for the 2.8 motors from what I was told.

mike-2ptzero
12-28-2005, 03:25 PM
Originally posted by trailboss
Get 6E's, 7E's are a heat range colder. Unless you have a BT.

I think a step colder would be needed more on a K03/K04 with a chip that runs high boost since the IAT's will be higher with the smaller turbo then with a larger one.

bitterchild
12-28-2005, 04:34 PM
Originally posted by mike-2ptzero
I think a step colder would be needed more on a K03/K04 with a chip that runs high boost since the IAT's will be higher with the smaller turbo then with a larger one.

mike-2ptzero
12-28-2005, 07:44 PM
Originally posted by NoFlyZone
My plugs have about 25K on em. Just pulled the plugs and noted an excessive gap on one. Maybe I should change the set.. Iridiums are EXPENSIVE however. Thinking of changing the coil packs. Haven't checked codes lately but the last check told me I had a miss in number 3 cylinder. Cannot find the #%&@! firing order ANYWHERE

What do you need the firing order for? If you have a miss on #3 its just the 3rd cylinder and #1 is at the front next to the timing belt.


BTW, copper plugs should be changed around 3k-5k miles or right around the time you do your oil change, they can be pushed to 7k-10k if the car is running perfect but you might want to check them a few times.

trailboss
12-28-2005, 11:58 PM
Originally posted by mike-2ptzero
I think a step colder would be needed more on a K03/K04 with a chip that runs high boost since the IAT's will be higher with the smaller turbo then with a larger one.
You consider high boost 1.1 bar at most since most k03/k04 chips run that.

mike-2ptzero
12-29-2005, 01:27 AM
Originally posted by trailboss
You consider high boost 1.1 bar at most since most k03/k04 chips run that.

Well at just 1.1 bar the K03/K04 blows hot air all the time, plus most of the 00+ k03 chips run 18-20psi and the 00 K04 chips run 22-28psi. I condsider 18+ to be high boost on a K03, I ran mine at 20-24 before replacing it with a PES T28 kit.

NoFlyZone
12-29-2005, 07:49 AM
I had to dig in the archives (Audi receipts and a LOT of them) to remember what chip I'm running. I've had this car nearly 6 years and 156,000 miles! Back in March of 2000 I had Dynospot Racing install a TIP chip in this car. I might imagine there are might be better chips out there since the early days but have always been happy with this setup. Until my turbo goes (or my motor) I'll stick with this setup. Still have original FPR and fuel filter. I'm changing my plugs to the Bosch F7LTCR this morning. Changing the fuel filter looks to be a bitch but certainly wouldn't hurt!

mike-2ptzero
12-29-2005, 07:58 AM
Originally posted by NoFlyZone
I had to dig in the archives (Audi receipts and a LOT of them) to remember what chip I'm running. I've had this car nearly 6 years and 156,000 miles! Back in March of 2000 I had Dynospot Racing install a TIP chip in this car. I might imagine there are might be better chips out there since the early days but have always been happy with this setup. Until my turbo goes (or my motor) I'll stick with this setup. Still have original FPR and fuel filter. I'm changing my plugs to the Bosch F7LTCR this morning. Changing the fuel filter looks to be a bitch but certainly wouldn't hurt!


Fuel filter isn't that hard as long a follow the faq, have a lift and have the correct tools. I would say with that its about a half hr job.

Daft
12-29-2005, 08:00 AM
Originally posted by NoFlyZone
I'm changing my plugs to the Bosch F7LTCR this morning.

Bad idea......

You can't gap those plugs. You're still going to have some missing under full boost, especially near the 5K to 6K range.

Get some NGK BKR6E plus and gap them to 0.028".

NoFlyZone
12-29-2005, 08:36 AM
OK. Sounds like I'll try the NGK BKR6E's. I think I'll install a boost gauge just for curiosity sake. Thanks guys!