Car jerks and feels like it missfires..Maybe something with fuel??
12-25-07, 12:42 AM
#1
rotoryat16....4 life...
Thread Starter
Join Date: Apr 2006
Location: Los Angeles CA
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Car jerks and feels like it missfires..Maybe something with fuel??
Most recently my 87 TII has been feeling restricted.. it just wont accelerate at specific times..its very random when it decides to act like this...i just changed all my plugs and wires but it still does it sometimes...Could it be the fuel pump, filter, injectors?? It also doesn't really do it when its cold...its really weird and i wanna fix this asap. Any ideas??
Last edited by rotaryat16; 12-25-07 at 01:03 AM.
01-02-08, 10:50 PM
#4
rotoryat16....4 life...
Thread Starter
Join Date: Apr 2006
Location: Los Angeles CA
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Sorry...i might be kinda dumb but what does FSM stand for??
And i fixed that issue for the most part, but now i feel like it is still restricted...i am thinking maybe Fuel Injectors are clogging up a bit?? Or pump??
01-03-08, 07:03 PM
#5
Retired Moderator, RIP
iTrader: (142)
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes
on
114 Posts
Just a Second!..you Stated you changed the plugs and Wires?..Then My Friend,I am Going to Bet you a Coffee that you have the Trailing wires on WRONG...so,here is the Remedy..LEADING PLUG WIRES..one goes to Lower Front plug,one goes to Rear lower Plug..IT DOES NOT MATTER WHICH LEADING WIRE GOES TO WHAT LEADING PLUG..THEY FIRE AT THE SAME TIME(SORRY FOR CAPS!)..Now the TRAILING PLUG WIRES,they fire Differently...,so Hook them up like this:The wire that is closest to the front of the Engine,goes to the UPPER Front Plug.The Plug wire that is nearest the Brake booster goes to the UPPER REAR plug....You see if the car was running correctly BEFORE you changed plugs,and now runs like ****,.leads me to believe that the wires are switched..and Do NOT feel bad..I have done it before!,,and YES the car will run like it is Backfiring,lack power..etc..so GOOD luck..and I'll have that Coffee ..TO GO!..haha!..STYX!~
01-12-08, 04:12 AM
#6
rotoryat16....4 life...
Thread Starter
Join Date: Apr 2006
Location: Los Angeles CA
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Just a Second!..you Stated you changed the plugs and Wires?..Then My Friend,I am Going to Bet you a Coffee that you have the Trailing wires on WRONG...so,here is the Remedy..LEADING PLUG WIRES..one goes to Lower Front plug,one goes to Rear lower Plug..IT DOES NOT MATTER WHICH LEADING WIRE GOES TO WHAT LEADING PLUG..THEY FIRE AT THE SAME TIME(SORRY FOR CAPS!)..Now the TRAILING PLUG WIRES,they fire Differently...,so Hook them up like this:The wire that is closest to the front of the Engine,goes to the UPPER Front Plug.The Plug wire that is nearest the Brake booster goes to the UPPER REAR plug....You see if the car was running correctly BEFORE you changed plugs,and now runs like ****,.leads me to believe that the wires are switched..and Do NOT feel bad..I have done it before!,,and YES the car will run like it is Backfiring,lack power..etc..so GOOD luck..and I'll have that Coffee ..TO GO!..haha!..STYX!~
NOPE...thats not it... my plug wires have always been hooked up correctly and that was the very first thing i checked. It is something with the fuel, not spark.
01-12-08, 08:37 AM
#7
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
A car running LEAN will act like that. You've given a hint as to that being the problem.
When you first start the car up it's stone cold. The ECU richens up the mixture quite a bit, til the water temp gets first to approx 125*F where it gets leaned out a bit, and then around 155* F where the mixture gets a touch leaner and, to me ,seems to stay at that value.
I'm talking or trying to say, it'll be maybe 11.5afr when first started........then when 125*F happens it'll go up to 12.8afr or so.........and then when 155* F is reached it'll go to 13.2afr or so and stay that afr up til the engine gets to 180* F.
Talking afr seen at idle. But If I drive the car from stone cold, and watch the afr while driving, I see about the same thing happen while driving as described above.
So that's why I'm saying you MIGHT have a lean condition. Why? Got me. OR it could be another thing all together.
When you first start the car up it's stone cold. The ECU richens up the mixture quite a bit, til the water temp gets first to approx 125*F where it gets leaned out a bit, and then around 155* F where the mixture gets a touch leaner and, to me ,seems to stay at that value.
I'm talking or trying to say, it'll be maybe 11.5afr when first started........then when 125*F happens it'll go up to 12.8afr or so.........and then when 155* F is reached it'll go to 13.2afr or so and stay that afr up til the engine gets to 180* F.
Talking afr seen at idle. But If I drive the car from stone cold, and watch the afr while driving, I see about the same thing happen while driving as described above.
So that's why I'm saying you MIGHT have a lean condition. Why? Got me. OR it could be another thing all together.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
LunchboxSA22
2nd Generation Specific (1986-1992)
37
10-26-15 10:53 AM
zuesskroph
2nd Generation Specific (1986-1992)
0
08-13-15 06:05 PM
