LT1-LT4 Modifications 1993-97 Gen II Small Block V8

opti spark question

Thread Tools
 
Search this Thread
 
Old Jun 16, 2009 | 11:39 PM
  #1  
kalebm22's Avatar
Thread Starter
Restricted User
iTrader: (2)
 
Joined: Feb 2009
Posts: 707
Likes: 0
Default opti spark question

when an optispark fails do you need to replace the full distributer or will the cap and rotor fix the problem?
Reply
Old Jun 17, 2009 | 05:35 AM
  #2  
MyOlina's Avatar
Registered User
 
Joined: Jun 2009
Posts: 4
Likes: 0
Default

I'm pretty sure if the actual distributor goes out it gives you a check engine light. If you are just having hesitation, staggering, misfiring symptoms than you can probably get away with just the cap and rotor. I actually just got finished replacing my cap and rotor last night. I had no check engine light coming on and the cap and rotor seemed to do the trick. Just to do the cap and rotor you will need an e4 external torx and a t8 torx.
Reply
Old Jun 17, 2009 | 06:40 AM
  #3  
Badazz 97 TA's Avatar
TECH Addict
iTrader: (18)
 
Joined: Aug 2007
Posts: 2,169
Likes: 2
From: Arizona
Default

i disagree. most will tell you to replace the whole thing. yes the cap and rotor do wear over time but the opti sensor itself is the culprit for most problems, not the cap and rotor
Reply
Old Jun 17, 2009 | 07:44 AM
  #4  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,145
Likes: 61
From: Little Rock, AR
Default

Originally Posted by kalebm22
when an optispark fails do you need to replace the full distributer or will the cap and rotor fix the problem?
It depends on what the problem actually is. If the opti is a high mileage one, you are probably better off replacing the whole thing.
Reply
Old Jun 17, 2009 | 11:37 PM
  #5  
dirtynorth's Avatar
On The Tree
 
Joined: Apr 2009
Posts: 125
Likes: 0
From: canton MI
Default

Mine only messes up and misfires when its wet outside any other time its fine except for a little bit of a rough idle. Which i think is caused by my recent emisisons deletes. But im not sure. Should i replace the whole thing or just the cap and rotor do you think??
Reply
Old Jun 18, 2009 | 12:51 AM
  #6  
Z28Camaro30Ann's Avatar
12 Second Club
iTrader: (15)
 
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
Default

Did you delete the emissions only, or did you tune it out of the computer too? And I was having huge misfire problems and all MULTIPLE times.

First time turned out to be the SP wires hitting the header...
Second time was the Cap and Rotor...
Third time was SP Wires again...
Fourth time was the distributor...
Fifth and final time was the SP Wires...

This all happened within a month and a half...

I ended up saying F it and went with the MSD Distributor, MSD Cap/Rotor, and MSD 8.5mm OTVC SP Wires. Been 2 months now and NO problems whatsoever!
Reply
Old Jun 18, 2009 | 04:37 AM
  #7  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

I second replacing the whole thing. Many times it is difficult to tell what the culprit is when one starts failing.
Reply
Old Jun 18, 2009 | 06:07 AM
  #8  
MyOlina's Avatar
Registered User
 
Joined: Jun 2009
Posts: 4
Likes: 0
Default

So it doesn't give you a check engine light when something is wrong with the sensor ? I wonder why i was told that...grrr
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jun 18, 2009 | 11:11 AM
  #9  
Z28Camaro30Ann's Avatar
12 Second Club
iTrader: (15)
 
Joined: Mar 2007
Posts: 1,928
Likes: 0
From: Cheyenne, Wy
Default

I got a check engine light but it wasnt for any sensors...it kept telling me I was getting a P0300 "Random/Multiple Cylinder Misfire" when my capand when my distributor went out...when I burned through the SP wires I got a P0305 "#5 Cylinder Misfire"

Those were the only SES lights I got
Reply
Old Jun 18, 2009 | 12:29 PM
  #10  
ss.slp.ls1's Avatar
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default

P0300 and P0336 can be caused by a bad opti or a bad coil or both.

I agree with those who said to replace the whole unit. Make sure you get a genuine AC Delco/Delphi opti.
Reply
Old Jun 19, 2009 | 11:46 AM
  #11  
kalebm22's Avatar
Thread Starter
Restricted User
iTrader: (2)
 
Joined: Feb 2009
Posts: 707
Likes: 0
Default

well i replaced the opti with an accel distributer, and it fired up a little rough but then it idled good and ran better then ever. but after i turned it off the car had trouble starting and acted like it wasnt getting enough fuel. what would be causing this? bad fuel filter maybe?
Reply
Old Jun 19, 2009 | 11:57 AM
  #12  
Badazz 97 TA's Avatar
TECH Addict
iTrader: (18)
 
Joined: Aug 2007
Posts: 2,169
Likes: 2
From: Arizona
Default

well you bought a crappy brand opti. accel is garbage
Reply
Old Jun 19, 2009 | 12:00 PM
  #13  
ss.slp.ls1's Avatar
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default

Originally Posted by Badazz 97 TA
well you bought a crappy brand opti. accel is garbage
^Agreed.

OP, If you suspect a fuel issue, test your fuel pressure.
Reply
Old Jun 22, 2009 | 09:40 AM
  #14  
jcleaver17's Avatar
Staging Lane
 
Joined: Jun 2009
Posts: 58
Likes: 0
Default

made the mistake of buying an opti from autozone, now after changing it 3 times in a year, i went down and got an O.E. opti... see how that goes
Reply




All times are GMT -5. The time now is 11:19 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE