12-06-2005
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#1
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Join Date: Aug 2004
Location: out in the boonies.
Posts: 88
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misfiring.
hey guys. 95 talon tsi awd misfires badly at boost. ive changed the spark plugs/wires. thinking it could be the ignition coil, what do you think?
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12-06-2005
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#2
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flips McGee
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Re: misfiring.
may also want to try swapping out the ignitor/power transistor.
could be a tuning issue, do you have any datalogging equipment?
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12-06-2005
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#3
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Join Date: Aug 2004
Location: out in the boonies.
Posts: 88
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Re: misfiring.
no i dont. car's completly stock cept for suspension, forgot to mention that.
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12-06-2005
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#4
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AWD4G64
Join Date: Jun 2004
Location: Shoreview, MN
Posts: 2,286
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Re: misfiring.
Id test the coil and power transistor. Did u gap the plugs and put the wires in the right order.
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12-06-2005
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#5
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Join Date: Aug 2004
Location: out in the boonies.
Posts: 88
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Re: misfiring.
platinum plugs. didnt need to be gapped. and yes the wires are in the right order.
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12-06-2005
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#6
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Boost Junkie
Join Date: Apr 2005
Location: MN
Drives: I teleport
Posts: 586
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Re: misfiring.
I had ngk platinum plugs in my 97 gsx, stock, and it didn't run too well. I bought ngk bpr7es' a couple weeks ago and accel wires and it runs and idles like money now, misfiring issues gone. Except I still have some sort of lag on spool up.
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12-07-2005
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#7
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Asshat King
Join Date: Oct 2003
Location: Decorah / Ames, Iowa
Posts: 3,683
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Re: misfiring.
Somewhere along the line I've read that platinum plugs are a big NO for DSMs. As to why, I have no idea. I wish I knew, anyone care to enlighten?
__________________
DSMSTYLE MAFIA - Holdin' Down the Cornfields of IA
'92 Laser RS AWD & '01 Grand Prix GTP
Proud to be a Cyclone
Check it out: Racers Against Street Racing |
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12-07-2005
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#8
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Hellbound
Join Date: Nov 2003
Location: St Paul
Posts: 1,390
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Re: misfiring.
Anything other than the oem NGKs are a big no.
__________________
-Nulli Secundus-
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12-07-2005
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#9
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Join Date: Oct 2003
Location: Red Wing, MN
Drives: Too Many
Posts: 3,184
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Re: misfiring.
Quote:
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Originally Posted by sway
platinum plugs. didnt need to be gapped. and yes the wires are in the right order.
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Didn't need to be gapped? Did you check them atleast to make sure? I would never trust that especially with a boosted car. Check that first thing before you go buying anything else.
I would get some NGK's anyway though, I have heard the platinums suck in DSM's too. If you are not running over 16-17psi get the BPR6ES though, the BPR7ES are more prone to fouling and are not generally needed unless you are running higher boost. |
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12-07-2005
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#10
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Join Date: Oct 2003
Location: Red Wing, MN
Drives: Too Many
Posts: 3,184
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Re: misfiring.
Oh yeah and Sway, pleast list any relative mods you have on your just if any. It will help you get answers. This problem will most likely be something really simple though.
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12-07-2005
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#11
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AWD4G64
Join Date: Jun 2004
Location: Shoreview, MN
Posts: 2,286
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Re: misfiring.
The girl bought the cheapest wires i have ever seen. A simple wire change and all was well.
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12-07-2005
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#12
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Re: misfiring.
So the problem is fixed or are you talking about someone else?
As far as not gapping/checking plugs, that is just retarded. Who knows how many times they have been dropped before they got to your hands. Also NGK BPR6ES (stock plugs) and BPR7ES (little colder than stock plugs) are the most common plugs used in DSM's. They are pre-gapped from NGK to .032 when you need them gapped to .028-.029 in your DSM.
__________________
Quote:
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Originally Posted by shoutbox
cmspaz: Someone buys me a rubber fist, and I'll rock it on my hood.
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12-07-2005
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#13
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Join Date: Aug 2004
Location: out in the boonies.
Posts: 88
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Re: misfiring.
problem fixed. cheap wires was causing the problem.
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12-07-2005
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#14
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AWD4G64
Join Date: Jun 2004
Location: Shoreview, MN
Posts: 2,286
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Re: misfiring.
So what did we learn sara?
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12-07-2005
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#15
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Join Date: Aug 2004
Location: out in the boonies.
Posts: 88
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Re: misfiring.
not to buy the cheapest stuff... what can i say, im poor. =P
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12-07-2005
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#16
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Asshat King
Join Date: Oct 2003
Location: Decorah / Ames, Iowa
Posts: 3,683
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Re: misfiring.
I'd ditch the platinum plugs as well.
__________________
DSMSTYLE MAFIA - Holdin' Down the Cornfields of IA
'92 Laser RS AWD & '01 Grand Prix GTP
Proud to be a Cyclone
Check it out: Racers Against Street Racing |
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12-07-2005
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#17
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AWD4G64
Join Date: Jun 2004
Location: Shoreview, MN
Posts: 2,286
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Re: misfiring.
Quote:
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Originally Posted by sway
not to buy the cheapest stuff... what can i say, im poor. =P
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ATTA Girl! HAHAHA. We all gotta learn sometimes. |
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12-07-2005
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#18
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AWD4G64
Join Date: Jun 2004
Location: Shoreview, MN
Posts: 2,286
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Re: misfiring.
Quote:
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Originally Posted by clean2g
Except I still have some sort of lag on spool up.
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Its called TURBO LAG.  |
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12-07-2005
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#19
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Join Date: Oct 2003
Location: Red Wing, MN
Drives: Too Many
Posts: 3,184
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Re: misfiring.
God dammit do I have to start closing tech threads when the problem is solved too? Shut up already unless you have something meaningful to add!
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12-09-2005
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#20
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Join Date: Aug 2004
Location: out in the boonies.
Posts: 88
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Re: misfiring.
Sorry i lied, problem wasnt solved. Im pretty sure its the plugs, so I'm going to go buy normal ones today and put em in. So i learned another lesson - no platinum plugs. Thanks guys!
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