LS in an EG breaks up at half throttle cant drive past 3000 rpm's
#1
Honda-Tech Member
Thread Starter
Join Date: Aug 2009
Location: baltimore
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
LS in an EG breaks up at half throttle cant drive past 3000 rpm's
I have a 1995 civic ex with a obd2 ls motor obd1 distributer p75 ecu. I put b16 pistons with arp head studs arp rod bolts. The car idles perfect the problem is when u start to accelurate it gets real rough and starts to break up at 1/2 or 1/4 throttle at 3000 rpm's. In neutral i can rev it at 1/4 throttle to 5000 rpm's but if i floor it in neutral the car goes to 3000 and forces itself down and starts to break up at 1800. and here is the list of stuff i have replaced:
ECU
distributer
plugs
wires
tps
3 different map sensors
3 different throttle bodies
5 different engine bay harnesses
fuel pressure regulator
fuel filter
fuel pump
3 different sets of injectors
i've checked all fuse's
reset timing and it is now dead on
its a new timing belt
new headgasket
ECU
distributer
plugs
wires
tps
3 different map sensors
3 different throttle bodies
5 different engine bay harnesses
fuel pressure regulator
fuel filter
fuel pump
3 different sets of injectors
i've checked all fuse's
reset timing and it is now dead on
its a new timing belt
new headgasket
#3
Honda-Tech Member
Re: LS in an EG breaks up at half throttle cant drive past 3000 rpm's
double check that the mechanical timing isnt off a tooth and make sure your ignition timing is dead on
#5
Honda-Tech Member
Thread Starter
Join Date: Aug 2009
Location: baltimore
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Re: LS in an EG breaks up at half throttle cant drive past 3000 rpm's
what do you mean by machanical timing but i no my timing is dead on
and my codes like jump around after driving for an hour it will say 43 1 and sometimes 43 1 42 and 6and sometimes 6 and 43 it's weird and if i figure it out ill let you know for sure thanks guys
and just replaced the altinator
and my codes like jump around after driving for an hour it will say 43 1 and sometimes 43 1 42 and 6and sometimes 6 and 43 it's weird and if i figure it out ill let you know for sure thanks guys
and just replaced the altinator
#6
Honda-Tech Member
Join Date: Aug 2007
Location: chehalis, wa, usa
Posts: 816
Likes: 0
Received 0 Likes
on
0 Posts
Re: LS in an EG breaks up at half throttle cant drive past 3000 rpm's
Just did an alt. Sounds like a Bad connection and may be a bad ground
do you still have a CAT?
if so un hook it and start the car if it still runs like Butt the Check all grounds and see if you can hook the motor up stock like and get it to run right.
also did you just cross over the stock harness to OBDII and plug it into the OBDII Motor
or did you get a harnness from some place like Rywire.Com
also why not run a P28 ECU and keep the cars Harness stock so you can pull codes and chip it?
do you still have a CAT?
if so un hook it and start the car if it still runs like Butt the Check all grounds and see if you can hook the motor up stock like and get it to run right.
also did you just cross over the stock harness to OBDII and plug it into the OBDII Motor
or did you get a harnness from some place like Rywire.Com
also why not run a P28 ECU and keep the cars Harness stock so you can pull codes and chip it?
#7
Honda-Tech Member
Thread Starter
Join Date: Aug 2009
Location: baltimore
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
Re: LS in an EG breaks up at half throttle cant drive past 3000 rpm's
no bad grounds , no cat and the motor and harness are stock just pistons are diferent and im not chipping a ecu
Thread
Thread Starter
Forum
Replies
Last Post
rexvtec
Honda Civic / Del Sol (1992 - 2000)
2
05-10-2014 05:00 AM
I Have an STD
Hybrid / Engine Swaps
45
08-01-2004 07:48 PM