wierd misfire thats driving me bananas
#1
Teching In
Thread Starter
Join Date: Jul 2009
Location: Hialeah,FL
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Whats up guys as the topic says wierd misfire , cars a 2000 z28 lq9 418ci stroker tuned speed density , after car has reached operating temp its got a wicked miss under load and wont turn past 3k ive check tps, coolant temp sensor , map sensor and wireing , checked fuel pressure and has new fuel filter on it , I also checked all the ground and everything is good and so is the voltage any insight would be greatly appreciated
Thanks, Jose
Thanks, Jose
#4
Teching In
Thread Starter
Join Date: Jul 2009
Location: Hialeah,FL
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Sorry for the late response , just put a fresh set of plugs and taylor wires , still has the miss but it only does it once its been at operating temp for a while I thought it might have been the f.p but its got 60psi rite befor it fonally dies
#5
Teching In
Thread Starter
Join Date: Jul 2009
Location: Hialeah,FL
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
#6
Teching In
Join Date: Oct 2012
Location: Lancaster, PA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
can you watch a misfire counter in data?
If not, find someone with a scope and take a spark signature sample when it's cold and running well, then do it again when it's warm and not running well. Compare the 2 and go from there.
If not, find someone with a scope and take a spark signature sample when it's cold and running well, then do it again when it's warm and not running well. Compare the 2 and go from there.
Trending Topics
#9
Teching In
Thread Starter
Join Date: Jul 2009
Location: Hialeah,FL
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Thanks for all the help guys really appreciate it and sorry for the late response been super busy , figured out what it was , the extension for the map sensor wires were very brittle and done with butt connector thanks to a good shop so I was a bit pissed , well ran new wireing and soldered and heat shrinked everything , looks better then factory lol
Thanks again guys
Thanks again guys