Check engine light and rough(thrilling) in low RPM.. help!!
#1
5th Gear
Thread Starter
Join Date: Dec 2006
Location: Boston
Age: 51
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Check engine light and rough(thrilling) in low RPM.. help!!
Hi.
I have 1996 2.5 TL. It was no problem until two weeks ago.
When I filled fuel with regular(I used to get regular for it) two weeks ago, I dropped the gap cap.
And then, I could see check engine light and hear rough sound below 1000 rpm. and some vibration..
Check engin light comes on when starting and is blinking when driving.
Rpm is unstable at stop situation(P, D, N.. ), but during driving it looked fine.
Well, one of my friends said.. that situation might result from Gas Cap's problem.
I don't know..
When I searched this category, I found about Autozone's scan..
Is it free?? and available at all Autozone??
Please give me advices about this..
Thanks
I have 1996 2.5 TL. It was no problem until two weeks ago.
When I filled fuel with regular(I used to get regular for it) two weeks ago, I dropped the gap cap.
And then, I could see check engine light and hear rough sound below 1000 rpm. and some vibration..
Check engin light comes on when starting and is blinking when driving.
Rpm is unstable at stop situation(P, D, N.. ), but during driving it looked fine.
Well, one of my friends said.. that situation might result from Gas Cap's problem.
I don't know..
When I searched this category, I found about Autozone's scan..
Is it free?? and available at all Autozone??
Please give me advices about this..
Thanks
#2
大日本帝国
It's your gas cap. The internal valve is probably stuck open causing it (the ECU) to think that there isn't one there, and causing your fuel system to lose pressure. Borrow a friend's one, install it, disconnect your negative terminal for 30 seconds, and start to drive around. It should clear itself up, meaning your next purchase is a gas cap.
~Cheers~
P.S. Yes, OBDII scans at Kragen/AutoZone/Pep Boys is (or should) be free.
~Cheers~
P.S. Yes, OBDII scans at Kragen/AutoZone/Pep Boys is (or should) be free.
#5
Flashing CEL means something is seriously wrong and should be checked immediately otherwise damage to the catalytic converter can occur due to excessive engine miss. I'm pretty sure a missing gas cap would not cause an engine miss, but for sure replace the gas cap first.
Get the fault codes set by the ECU and post the codes to get a better idea of your problem.
good luck
Get the fault codes set by the ECU and post the codes to get a better idea of your problem.
good luck
#6
5th Gear
Thread Starter
Join Date: Dec 2006
Location: Boston
Age: 51
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Unfortunatly,,, CEL is still on and blinking though I changed gas cap( non-locking pressure relief, CST?, red one).
OBDII scan said...
P0304
problem : missfire??
Please, follow this problem again. Thanks.
OBDII scan said...
P0304
problem : missfire??
Please, follow this problem again. Thanks.
#7
Originally Posted by sangtae@gmail.com
Unfortunatly,,, CEL is still on and blinking though I changed gas cap( non-locking pressure relief, CST?, red one).
OBDII scan said...
P0304
problem : missfire??
Please, follow this problem again. Thanks.
OBDII scan said...
P0304
problem : missfire??
Please, follow this problem again. Thanks.
Let us know what you find.
good luck
Trending Topics
#8
5th Gear
Thread Starter
Join Date: Dec 2006
Location: Boston
Age: 51
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Thanks,
Now, the thrilling situation is better than before changing gas cap. But, engine is still thrilling in D4-position more(N is better.)
And I checked cylinder 4(Is cylinder 4 4th cylinder from top(windshield side)?).
I pulled out wire(is it correct term?) and this wire is very loosely connected to spark plug(actually, I am worrying about wrong cennection between spark plug and this wire) because I couldn't feel the junction connection between this wire and spark plug. it can be out with very weak power.
However, cylinder 3 showed better tight connection and I could see some moisture in this cylinder 3's wire but I couldn't see any moisture in cylinder 4.
Which is normal condition?(moisture pattern?) (I have not used my car since last night.. alost 20 hours?_
If that cable's problem, can I change this wire or spark plug for cylinder 4 by myself?
Actually, my previous owner changed spark plugs and wire with high-performance products(I don't know, he said to me like that, my wires are red colored line and black connector(to spark plug) about 150-160k miles mileage.
So, I'd like to know if I can change only 1 cable wire for cylinder 4 or I should change all.
And,if you have, could you give me more detail method for replacing wires and plugs?
About a month ago, I got state inspection and everything were fine at that time. It was lucky to me... Hopely, I would figure it out as soon as possible.
Thanks..
Now, the thrilling situation is better than before changing gas cap. But, engine is still thrilling in D4-position more(N is better.)
And I checked cylinder 4(Is cylinder 4 4th cylinder from top(windshield side)?).
I pulled out wire(is it correct term?) and this wire is very loosely connected to spark plug(actually, I am worrying about wrong cennection between spark plug and this wire) because I couldn't feel the junction connection between this wire and spark plug. it can be out with very weak power.
However, cylinder 3 showed better tight connection and I could see some moisture in this cylinder 3's wire but I couldn't see any moisture in cylinder 4.
Which is normal condition?(moisture pattern?) (I have not used my car since last night.. alost 20 hours?_
If that cable's problem, can I change this wire or spark plug for cylinder 4 by myself?
Actually, my previous owner changed spark plugs and wire with high-performance products(I don't know, he said to me like that, my wires are red colored line and black connector(to spark plug) about 150-160k miles mileage.
So, I'd like to know if I can change only 1 cable wire for cylinder 4 or I should change all.
And,if you have, could you give me more detail method for replacing wires and plugs?
About a month ago, I got state inspection and everything were fine at that time. It was lucky to me... Hopely, I would figure it out as soon as possible.
Thanks..
#9
Cylinder 4 is 4th counting from front of engine to rear.
Sounds like someone put wrong wire set on your car. They should fit snugly and snap down into the valve cover well to seal and prevent any moisture entering the spark plug well. If they don't I would purchase a good quality set of wires made specifically for your model. If one has gone bad, others are likely to follow.
If you have to ask how to change plugs and wires, you should probably seek some assistance. You can cause a lot of problems w/ your engine attempting to install spark plugs w/ incorrect tools and technique. If you want to learn DIY, get a shop manual for your car and a general book on DiY auto repair and study a bit.
good luck
Sounds like someone put wrong wire set on your car. They should fit snugly and snap down into the valve cover well to seal and prevent any moisture entering the spark plug well. If they don't I would purchase a good quality set of wires made specifically for your model. If one has gone bad, others are likely to follow.
If you have to ask how to change plugs and wires, you should probably seek some assistance. You can cause a lot of problems w/ your engine attempting to install spark plugs w/ incorrect tools and technique. If you want to learn DIY, get a shop manual for your car and a general book on DiY auto repair and study a bit.
good luck
#10
大日本帝国
Originally Posted by TexasHonda
Flashing CEL means something is seriously wrong and should be checked immediately otherwise damage to the catalytic converter can occur due to excessive engine miss.
~Cheers~
#11
5th Gear
Thread Starter
Join Date: Dec 2006
Location: Boston
Age: 51
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Thanks guys.
I think I fixed this problem. When I checked the wires last night, the wire from cylinder 4 was not correctly connected to valve(bottom side of windshield?). So, I connected again and disconnect battery for a while to remove CEL.
After that, I could feel much more smooth engine sound. I have not tested yet(no drive yet.)..
I'll check soon.
Cylinder 2's wire is loosely connected compared to others.. But, it might be ok?
Well, I have to tune up next year for that...
Thanks.
I think I fixed this problem. When I checked the wires last night, the wire from cylinder 4 was not correctly connected to valve(bottom side of windshield?). So, I connected again and disconnect battery for a while to remove CEL.
After that, I could feel much more smooth engine sound. I have not tested yet(no drive yet.)..
I'll check soon.
Cylinder 2's wire is loosely connected compared to others.. But, it might be ok?
Well, I have to tune up next year for that...
Thanks.
#12
I would replace the spark plug wires with NGK or other performance brand (about $80/set) and purchase the correct NGK-r plugs (about $8.99/each). You might be suprised how much better the vehicle will run and respond to the accelerator.
Going cheap on the ignition is a quick way to wast gase and prematurely wear the engine.
I would also heed the warnings provided by TexasHonda, as it is quite easy to damage the threads on the cylinder heads of import cars when changing the plugs. Warm the engine just a little and be easy on the threads.
Going cheap on the ignition is a quick way to wast gase and prematurely wear the engine.
I would also heed the warnings provided by TexasHonda, as it is quite easy to damage the threads on the cylinder heads of import cars when changing the plugs. Warm the engine just a little and be easy on the threads.
Thread
Thread Starter
Forum
Replies
Last Post
HeloDown
3G TL Problems & Fixes
4
09-08-2015 06:51 PM