Ignition Timing
#1
It's Radiation Therapy
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
Join Date: Nov 2005
Location: Nashville, TN
Posts: 902
Likes: 0
Received 0 Likes
on
0 Posts
Ignition Timing
Ok, so I did a search but didn't really figure this out...
I have an '88 n/a that has HORRIBLE emmissions...So I'm checking the timing today. I let the car warm up and it idles relatively smooth at about 750. I check L1 and it looks to be dead on...hiting the Right-most timing mark on the pulley. T1 however does not appear to be hiting near a timing mark at all... and T2 is not even firing. Is my trailing coil pack going bad here or what? This should not affect my emmissions this much should it? any ideas?
BTW the Emmissions is at 1620 PPM HC and 6.1% CO both are WAY above legal limit.
I have an '88 n/a that has HORRIBLE emmissions...So I'm checking the timing today. I let the car warm up and it idles relatively smooth at about 750. I check L1 and it looks to be dead on...hiting the Right-most timing mark on the pulley. T1 however does not appear to be hiting near a timing mark at all... and T2 is not even firing. Is my trailing coil pack going bad here or what? This should not affect my emmissions this much should it? any ideas?
BTW the Emmissions is at 1620 PPM HC and 6.1% CO both are WAY above legal limit.
#2
Senior Member
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Join Date: Oct 2003
Location: Jonesborough, TN
Posts: 440
Likes: 0
Received 0 Likes
on
0 Posts
Trailing plugs not firing will hurt your emissions. That, as I understand it, is their main reason for exsitence; to improve combustion.
I have a car that is doing the exact same thing as yours right not. T1 is dead and T2 does not fire evenly, missing often. I have not found any coils to replace these to see if that fixes the problem. I however really do not think the problem is with the coils as they test out OK.
If you figure out your problem please post what you did to fix it. I will do likewise.
I have a car that is doing the exact same thing as yours right not. T1 is dead and T2 does not fire evenly, missing often. I have not found any coils to replace these to see if that fixes the problem. I however really do not think the problem is with the coils as they test out OK.
If you figure out your problem please post what you did to fix it. I will do likewise.
Thread
Thread Starter
Forum
Replies
Last Post
befarrer
Microtech
3
08-22-15 05:52 PM