Hello all. I am hoping to get some help with my sy#1299. I recently had my coil go out, replaced it, was driving to work and then it began to hesitate on acceleration and idle extremely rough. Popped the hood and saw the #6 plug wire melted. Easy fix :tup: so I thought. I replaced cap, rotor, wires(msd 8.5 mm pn 31849) and ngk plugs (pn2771 gapped to .026). Fired it up and have the exact same misfire and hesitation. Checked for vacuum leaks (none) and triple checked firing order. Drove and seems to run ok around 3,000 rpm. Any ideas :roll: Thanks
Rough idle and hesitation on acceleration
- Thread starter JEB91SY
- Start date
Re: Rough idle and hesitation on acceleration
I am having this almost exact same problem. I changed my plugs, cap, rotor... no fix! I also did my map sensor which stopped it from stalling.
Without load, i.e., driving down hill I can give it gas and there is no hesitation, while if I drive uphill the truck bucks and sputters. If I go lighter on the gas it doesn't sputter much, but then Corollas are passing me.
JEB91SY said:
I am having this almost exact same problem. I changed my plugs, cap, rotor... no fix! I also did my map sensor which stopped it from stalling.
Without load, i.e., driving down hill I can give it gas and there is no hesitation, while if I drive uphill the truck bucks and sputters. If I go lighter on the gas it doesn't sputter much, but then Corollas are passing me.
artisticent
Member
Re: Rough idle and hesitation on acceleration
Yep, same problem here too. We all really need to stay in touch on this one. I am told that all sy's run a little rough but Im sure that from a stop to lauch its not supposed to lag for a second before it goes. Im gonna re-check all vacuum lines, ECM ground and TV adjustment. If i power brake just a little I can get it past that stutter and its fine.
Nathan
Yep, same problem here too. We all really need to stay in touch on this one. I am told that all sy's run a little rough but Im sure that from a stop to lauch its not supposed to lag for a second before it goes. Im gonna re-check all vacuum lines, ECM ground and TV adjustment. If i power brake just a little I can get it past that stutter and its fine.
Nathan
Bill Z
Donating Member
Re: Rough idle and hesitation on acceleration
My nephew had the same problem with his 93 Typhoon and it turned out being the distributor pickup coil. He bought a rebuilt distributor and TA DA.
Maybe one of you can borrow a decent distributor and check it out.
Hope this helps.
My nephew had the same problem with his 93 Typhoon and it turned out being the distributor pickup coil. He bought a rebuilt distributor and TA DA.
Maybe one of you can borrow a decent distributor and check it out.
Hope this helps.
Flyin Ryan
hated cuz he drives fords
Re: Rough idle and hesitation on acceleration
I remember someone a long while back having this issue.. I believe they did everything but no dice until they had to take the motor apart for another reason and found that there intake gasket was leaking... I'd try searching in the forum for different words like hesitation etc and see what you turn up.
I remember someone a long while back having this issue.. I believe they did everything but no dice until they had to take the motor apart for another reason and found that there intake gasket was leaking... I'd try searching in the forum for different words like hesitation etc and see what you turn up.
Re: Rough idle and hesitation on acceleration
I also replaced the pick up coil with no change. Now here's the odd thing......it sat for about 6 months, fired it up, idle was perfect and after about 2 minutes or so it began doing the exact samething. I'm leaning toward Boostedpimp's idea of a leaking intake gasket and/or possible valve issue. Going to dig into it a little more in the next couple of weeks and I'll let you guy's now on what I find. :tup:
Bill Z said:
I also replaced the pick up coil with no change. Now here's the odd thing......it sat for about 6 months, fired it up, idle was perfect and after about 2 minutes or so it began doing the exact samething. I'm leaning toward Boostedpimp's idea of a leaking intake gasket and/or possible valve issue. Going to dig into it a little more in the next couple of weeks and I'll let you guy's now on what I find. :tup:
Re: Rough idle and hesitation on acceleration
May need to clean out your IAC good before you throw more $$ at it. My Ty does that sometimes, the IAC has a tendancy to stick on mine the older it gets. A good cleaning with some carb cleaner usually does the trick. about a 5 minute 0$ fix. Worth a try
May need to clean out your IAC good before you throw more $$ at it. My Ty does that sometimes, the IAC has a tendancy to stick on mine the older it gets. A good cleaning with some carb cleaner usually does the trick. about a 5 minute 0$ fix. Worth a try
Inferno
New member
Re: Rough idle and hesitation on acceleration
alright guys, I gotta jump in here also... I have a 92 Ty 143k on her. The previous owner did a bunch of posts about the truck not acting right, sputtering, stalling, not fast... sometimes. Other times she is a missle lighting up all fours and wrecking the local imports. I purchased #1922 from Jonathan back in november, drove from Arcata CA to Woonsocket RI. No issues, ran fine... Since November I have had the same problems as Jon, sometimes fast, sometimes really really slow, sometimes cannot even drive, just bucks and sounds like popping from the intake. the last three months my truck has been at Boulevard Collision, nothing broken, just getting a complete paint, rust, frame job. Went to go pickup after sitting for the three months and vroom started fine, and drove awsome. This was yesterday. This morning I had to find a ride to work, won't move just pops and bucks. I am completely lost, I will try what you guys are saying here, but I think I need to bring her to someone who knows these things really well. Although I do prefer to do the works myself.. please someone I CAN'T LET ANOTHER HONDA PASS ME
alright guys, I gotta jump in here also... I have a 92 Ty 143k on her. The previous owner did a bunch of posts about the truck not acting right, sputtering, stalling, not fast... sometimes. Other times she is a missle lighting up all fours and wrecking the local imports. I purchased #1922 from Jonathan back in november, drove from Arcata CA to Woonsocket RI. No issues, ran fine... Since November I have had the same problems as Jon, sometimes fast, sometimes really really slow, sometimes cannot even drive, just bucks and sounds like popping from the intake. the last three months my truck has been at Boulevard Collision, nothing broken, just getting a complete paint, rust, frame job. Went to go pickup after sitting for the three months and vroom started fine, and drove awsome. This was yesterday. This morning I had to find a ride to work, won't move just pops and bucks. I am completely lost, I will try what you guys are saying here, but I think I need to bring her to someone who knows these things really well. Although I do prefer to do the works myself.. please someone I CAN'T LET ANOTHER HONDA PASS ME
Re: Rough idle and hesitation on acceleration
Im in the same boat....mine started doing the same thing after the tuneup. I had a fellow member take a look at it. We think we got her figured out though, something to do with my IC pump not working and my intake air temp being over 200 degrees.....
Im in the same boat....mine started doing the same thing after the tuneup. I had a fellow member take a look at it. We think we got her figured out though, something to do with my IC pump not working and my intake air temp being over 200 degrees.....
Re: Rough idle and hesitation on acceleration
You guys have to check for trouble codes first things first and go from there...
Everyone is prone to doing this (myself included) we often overlook the simple things in search of something far worse.
But first step is look for trouble codes...and what you touched/messed with most recently before the issue began, double, triple check everything...and good luck!!!
You guys have to check for trouble codes first things first and go from there...
Everyone is prone to doing this (myself included) we often overlook the simple things in search of something far worse.
But first step is look for trouble codes...and what you touched/messed with most recently before the issue began, double, triple check everything...and good luck!!!
artisticent
Member
Re: Rough idle and hesitation on acceleration
By trouble codes are you referring to the check engine light being on? Most of us dont have the light on. For me, I have finally bought a version of datamaster and will have it in a week. The advice I hear wether you have problems or not is to run this program and see what the truck is doing. But it is tempting to just start replacing stuff before I get it.
Thanks
Nathan
By trouble codes are you referring to the check engine light being on? Most of us dont have the light on. For me, I have finally bought a version of datamaster and will have it in a week. The advice I hear wether you have problems or not is to run this program and see what the truck is doing. But it is tempting to just start replacing stuff before I get it.
Thanks
Nathan
Inferno
New member
Re: Rough idle and hesitation on acceleration
no codes bro... but get this.... once again this morning she would not start.. just pop and keep cranking, I would turn the key on and off a bunch of times to prime the fuel system and then it would run for a half second... so for some reason I decide to reach to the passenger side under dash and PUNCH THE @#%@# out of the computer... well vroooom...
Now i am thinking computer ??? are these the same as S-10's ?? or am I gonna have a hard time finding one...
no codes bro... but get this.... once again this morning she would not start.. just pop and keep cranking, I would turn the key on and off a bunch of times to prime the fuel system and then it would run for a half second... so for some reason I decide to reach to the passenger side under dash and PUNCH THE @#%@# out of the computer... well vroooom...
Now i am thinking computer ??? are these the same as S-10's ?? or am I gonna have a hard time finding one...
artisticent
Member
Re: Rough idle and hesitation on acceleration
That is very likely. Dean, here on the board also had a problem that haunted him. He later found it to be a loose wire in the plug of the ECM. I believe it was the distributor wire? anyway your problem could just be a bed ground. I would pull it out making sure you are grounded. Unplug it and look for any suspicious wires, confirm a good clean ground and reinstall. its worth a try.
Nathan
That is very likely. Dean, here on the board also had a problem that haunted him. He later found it to be a loose wire in the plug of the ECM. I believe it was the distributor wire? anyway your problem could just be a bed ground. I would pull it out making sure you are grounded. Unplug it and look for any suspicious wires, confirm a good clean ground and reinstall. its worth a try.
Nathan
Inferno
New member
Re: Rough idle and hesitation on acceleration
swapped computer yesterday... 77-7749 local parts store had one... this morning she ran... still bogging real bad on acceleration and when I launch... it horrible I am gonna back to babying her until I can get a either a new chip tuned for her or maybe MAP sensor ?? When I got the truck I was told it needed a 3 bar... does anyone know what type of vehicle I can get one from or order one for ??
swapped computer yesterday... 77-7749 local parts store had one... this morning
she ran... still bogging real bad on acceleration and when I launch... it horrible I am gonna back to babying her until I can get a either a new chip tuned for her or maybe MAP sensor ?? When I got the truck I was told it needed a 3 bar... does anyone know what type of vehicle I can get one from or order one for ??![Quickstop [UK]](/data/avatars/m/5/5165.jpg?1570199786){kind=avatar}
Quickstop [UK]
Combating adversyty.
Re: Rough idle and hesitation on acceleration
why were you told you need a 3 bar? what code are you running?
If you want tupgrade to a 3 bar chip you have a lot of things to change - code being the most important, but also people do fuel pump and the AFPR as well.
If it is a stock chip then your 2 bar is fine.
The part number and info for the 3 bar is here:
http://www.syty.net/forums/showthread.php?t=46585&highlight=bar+part+number
why were you told you need a 3 bar? what code are you running?
If you want tupgrade to a 3 bar chip you have a lot of things to change - code being the most important, but also people do fuel pump and the AFPR as well.
If it is a stock chip then your 2 bar is fine.
The part number and info for the 3 bar is here:
http://www.syty.net/forums/showthread.php?t=46585&highlight=bar+part+number
Don W.
Stab it and steer it
Re: Rough idle and hesitation on acceleration
That would be me. (Prolly among others) Anyway, Datamaster or Tunerpro, get some data and you should soon see what's happening. Long story but I threw a s*&^% load of parts at mine because of a failed idle smog test. One of the things I did was pay a respected shop to put the thing on a scope. Found a flaky dist. Fresh dist and, eventually, a new O2 sensor made a noticeable difference.
BTW I was in denial on the intake gasket. I shudda known. The plug on the cyl with the bad gasket was always "different" than the others.
HTH
Boostedpimp said:
That would be me. (Prolly among others) Anyway, Datamaster or Tunerpro, get some data and you should soon see what's happening. Long story but I threw a s*&^% load of parts at mine because of a failed idle smog test. One of the things I did was pay a respected shop to put the thing on a scope. Found a flaky dist. Fresh dist and, eventually, a new O2 sensor made a noticeable difference.
BTW I was in denial on the intake gasket. I shudda known. The plug on the cyl with the bad gasket was always "different" than the others.
HTH
wantingasy
Active member
Re: Rough idle and hesitation on acceleration
There was one time too when it did it horribly after leaving the body shop. (Fixing rust on floorboards) It was overboosting again because someone at the shop had the vacuum line going to the wastegate disconnected and it would hit about 20psi quick!!! So I babied it home and found the vacuum line disconnected.
Did you ever install that other chip in the computer and also the 3 bar map under the hood? I had never run that chip when I had it.
I just saw this thread now. When I had the TY, everytime it would do the popping/sputtering would be under full throttle and I did get a code. Overboosting. The truck was setup to run 17psi with the custom chip and 3 bar map. I had the stock chip and 2 bar map in it though. Never had time to remove inner fender and turn the boost back down to 15psi, so I just never floored it.Inferno said:
There was one time too when it did it horribly after leaving the body shop. (Fixing rust on floorboards) It was overboosting again because someone at the shop had the vacuum line going to the wastegate disconnected and it would hit about 20psi quick!!! So I babied it home and found the vacuum line disconnected.
Did you ever install that other chip in the computer and also the 3 bar map under the hood? I had never run that chip when I had it.
Flyin Ryan
hated cuz he drives fords
Re: Rough idle and hesitation on acceleration
yea Don you and Ed hess had a thread from way back about the same issue and his findings which were exactly the same as yours
Don W. said:
yea Don you and Ed hess had a thread from way back about the same issue and his findings which were exactly the same as yours