- This topic has 38 replies, 6 voices, and was last updated 10 years, 2 months ago by
.
-
Topic
-
Hello folks,
I have a 1999 2 door honda civic completely stock D16Y8 1.6 liter engine with a total mileage of 124K miles aprox.
Recently I have been experiencing a sudden loss of power while accelerating from a static position or even when accelerating from low speeds. I am having a hard time explaining so please bear with me..
It feels like the fuel feed cuts off and the car goes silent while still rolling, then starts coughing, jerking and stuttering until it goes back to normal. Been happening more frequently as time passes and is also affecting the gas mileage.
These were the first things I went for:
-Replaced Spark plugs (NGK of course)
-Replaced Spark plug cables (NGK of course)
-Replaced Air filter (OEM)
-Replaced Fuel filter (OEM)
-Have been running a whole bottle of injector cleaning additive per each 5 gallons(of the best gasoline available) I put in.*Edit 10/02/2014 – Replacing suspicious parts
-Replaced whole distributor.(OEM)
-Replaced IACV, tried 2 other IACVs from other vehicles. (OEM)
-Replaced fuel pump. (OEM)
-Ran more injector cleaning additives in fuel tank (tried all brands available).
-Checked for air bubbles in cooling system (none found).
-Checked and adjusted timing belt. (as per the mechanic it was slightly loose however not yet ready for replacement, timing belt was adjusted accordingly).*Edit 10/07/2014 – More tests and adjustments
-Power balance test -> passed, same power band drop on all cylinders
-Voltage leak test -> passed, no sparks or audible snaps
-Vacuum leak test (carburetor cleaner) -> passed, no RPM change anywhere
-Ignition and engine timing were slightly off, they were corrected accordingly. All belts still brand new.Any kind of help is greatly appreciated.
-
Replies
-
Fill you gas tank up with some good quality regular gas. Put 4 ounces of Marvel Mystery Oil in a full tank. You will know it’s working when you can no longer hear your fuel pump, while waiting for you check engine light to go out. It will also clear up your fuel injectors. Let me know if you notice a difference.
[quote=”cb7ftw” post=113893]Fill you gas tank up with some good quality regular gas. Put 4 ounces of Marvel Mystery Oil in a full tank. You will know it’s working when you can no longer hear your fuel pump, while waiting for you check engine light to go out. It will also clear up your fuel injectors. Let me know if you notice a difference.[/quote]
Unfortunately for me, that product is not sold in the country.
I’ve NEVER seen a Honda fuel psi listed at 110. I have no idea where you got that spec, I believe the 40psi was the correct number. Also, I believe I’ve stated this in the past, Honda fuel pumps rarely go bad. In fact, Honda fuel systems are pretty much bullet proof. I would be looking elsewhere for the cause of the problem like checking mechanical and also the ignition system. I also suggest reading through this article that details how to resolve performance issues like this.
http://www.ericthecarguy.com/faq/solving-automotive-performance-issues
[quote=”EricTheCarGuy” post=113995]I’ve NEVER seen a Honda fuel psi listed at 110. I have no idea where you got that spec, I believe the 40psi was the correct number. Also, I believe I’ve stated this in the past, Honda fuel pumps rarely go bad. In fact, Honda fuel systems are pretty much bullet proof. I would be looking elsewhere for the cause of the problem like checking mechanical and also the ignition system. I also suggest reading through this article that details how to resolve performance issues like this.
http://www.ericthecarguy.com/faq/solving-automotive-performance-issues%5B/quote%5D
Hi Eric. I will try out each one of those suggestions from the link you provided.
Just to clarify, the 110 PSI mark I got it from the mechanic and given i could not find any information in the past 3 days after the pump replacement, I have to go by what I am told and for good or bad it had to remain as the truth until I could verify the facts from another source, which in this case is was your vast experience.
That being said, I will continue the search and will post back.
thanks for the support.
The mechanic has just finished performing some of the performance tests suggested in Eric’s videos.
-Power balance test -> passed, same power band drop on all cylinders.
-Voltage leak test -> passed, no sparks or audible clicks/snaps.
-Vacuum leak test ( w/carburetor cleaner) -> passed, no RPM change found anywhere in the intake system.
-Ignition and engine timing were slightly off, they were corrected accordingly.
-All the belts are still in good condition.Having completed all the tests, the issue is still present with no noticeable improvement 🙁
The only observation I can make at this point is that the erratic pattern of occurrence is starting to narrow down. Occurrences are more often seen as the engine is mildly warm or when its hot and always at low RPM, low gear and low speed. I have also noticed that I can prevent the fishbiting/coughing from happening altogether by depressing the gas pedal further as I start to feel that it is losing power.
Hello everyone,
Just stopping by with some updates on the issue.
I’ve been checking codes with a scanner fairly frequently ever since I got this problem. No codes ever showed up until last week when I got a P1337: “Engine Speed (RPM) Fluctuation Sensor No Signal” and a P0132 “O2 sensor circuit high voltage bank 1 sensor 1”.
Searching through various forums I found that the P1337 was most likely due to a faulty crank position sensor. In MY case the sensor was missing. Yes, it was not there. I bought the sensor and the mechanic installed it. Checked for codes again, P1337 was gone. Cleared all codes and took the car for a drive. Drove for about 10 minutes and then hooked the scanner back on. P1337 is gone for good however P0132 is still showing up.
I have been looking for this O2 sensor for a few days but none of the pictures I come across with seem to match what I have in my D16Y8 engine. The primary o2 sensor is supposed to be mounted right in the front side of the exhaust manifold, the manifold shield is supposed to have an orifice through which the sensor is supposed to go, the heat shield in my manifold does not have that orifice. Does anyone know or can send a picture of where I am supposed to look for this sensor.
thanks much
**Update 10/22 10:23am ET
The new crank position sensor did not fix the issue
Havent found the O2 sensor location yetBoth me and my mechanic are out of ideas, i got nothing else to do but to take the car to a Honda shop and let them rip me off.
[quote=”nicoalmontec” post=119622]Both me and my mechanic are out of ideas, i got nothing else to do but to take the car to a Honda shop and let them rip me off.[/quote]
see if this helps.
- You must be logged in to reply to this topic.