ugh wtf help!!

[-RJ-]

ok this just happened out of the blue, I drove the car one night to goto gf house and it ran fine. The next morning, I had a hard time starting it and when I did it had a rough idle and ran really rich.

What I've done so far is cleaned out the spark plugs, checked to see if the wires were bad, checked vacuum leaks and changed O2 sensor. Im stuck. the only thing i can think of is checking the injectors resistance and changing the fuel filter, which i will do tomorrow when there is light and the stores are open.

Any input as to why this would just happen out of the blue? Any input would be appreciated.

I should also add that when i press the throttle all the way down the engine bogs and revs really slow or not at all sometimes but if i go half way it will rev up
Modified by -RJ- at 11:21 AM 9/14/2008

[Stev0n]

bad gas?

[Loki]

Obviously your vert is pouting because it is jealous of the time you're spending with the GF.

[BiXLL]

I am anxious to hear what you find. Mine seems to occasionally idle ruff, and seems to run rich when it does that.

[-RJ-]

bad gas?

could that cause it to run rich? and rough

[S15nS13vert]

maybe the distributor???

[94_240sx]

IACV(Idle Air Contrl Valve)???? Remove the tube, spray some carb cleaer, reconnect and drove around. That should clean some.

[-RJ-]

IACV(Idle Air Contrl Valve)???? Remove the tube, spray some carb cleaer, reconnect and drove around. That should clean some.

tried that, did nothing

[Kristine]

Obviously your vert is pouting because it is jealous of the time you're spending with the GF.

lol

[DeXteR]

Fuel injectors.

Get a multimeter and test the resistance across the injectors. Pull the plug and put the black probe on one terminal and the red probe on the other terminal. I'd bet you've got at least one of them out of spec.

[-RJ-]

Fuel injectors.

Get a multimeter and test the resistance across the injectors. Pull the plug and put the black probe on one terminal and the red probe on the other terminal. I'd bet you've got at least one of them out of spec.

ok will do,

**update**

I put new gas in it and the check engine light is off now** my filter is less than 5 months old, could that have gone bad too?

[Stev0n]

ok will do,

**update**

I put new gas in it and the check engine light is off now** my filter is less than 5 months old, could that have gone bad too?

haha i was right... what do i win?

nah, most likely you had some bad gas w/ water or some other contaminent in that caused you car to run ****ty. in ky, the odds are rather high that you will get bad gas quite often. I get it in one of my vehicles at least once a month.

[94_240sx]

ok will do,

**update**

I put new gas in it and the check engine light is off now** my filter is less than 5 months old, could that have gone bad too?

It won't go bad that quick unless your gas tank is rusted or something.

[-RJ-]

aren't our tanks plastic?

anyway i seafoamed the tank, replaced the filter and filled the tank up. car runs great now.

thanks guys

[Loki]

haha i was right... what do i win?

nah, most likely you had some bad gas w/ water or some other contaminent in that caused you car to run ****ty. in ky, the odds are rather high that you will get bad gas quite often. I get it in one of my vehicles at least once a month.

No, I was right. See, you shower your vert with a little attention and it gets over its jealousy

[-RJ-]

No, I was right. See, you shower your vert with a little attention and it gets over its jealousy

damn it silvia, good thing thats the only thing that gets insecure with me

[Azrial]

Probably was just some water in the gas. I've found that if you buy gas at united dairy farmers your car will run like crap. It probably had some water in it. Glad to hear it's all running good now.

[edward08]

Gas could be one problem but did u check the power transistor. it controls the coil if it goes bad it causes the car the run rough and run rich. the onlly problem is that it is a 150.00 dollar part. it is located next to the coil it has three wires that goes to it.

[BiXLL]

Gas could be one problem but did u check the power transistor. it controls the coil if it goes bad it causes the car the run rough and run rich. the onlly problem is that it is a 150.00 dollar part. it is located next to the coil it has three wires that goes to it.

How do you check this?

[GoinTopless240]

aren't our tanks plastic?

anyway i seafoamed the tank, replaced the filter and filled the tank up. car runs great now.

thanks guys

No .. Unfortunately not. I found out the the hard way. I kept my car stored for a few years. I found out after getting her running again that the fuel pump strainer was clogged. I replaced it. I started to have same problem. I looked inside tank and saw ton of brown in bottom. I put on the rubber gloves and scooped out a handful of rust...and another.. and another. Well I dropped the tank. Drained it out completely. Cleaned it as best I could and put everything back in. Well about 7 months later I checked it and replaced the fuel pump with a Walbro 255 and found only a slight amount of rust (yes cleaned it out using a pump style siphon). Replaced the strainer. Here is the problem and one you should look out for. The current gas available with ethanol is very corrosive. If you had an issue with rust before, the problem will only be worse with this gas. I would buy some extra rubber gaskets (one that goes around fuel pump access) and a few of the fuel pump strainers (Autozone sells them for about $12.00 or so). If I begin to hear my fuel pump whine, it usually means time for a strainer change. Hope this helps you out. Good luck with her. Some TLC never hurts too (with the car and the GF).

[edward08]

to test the power transistor u have to get a digital mulitmeter and ohm test terminals a and b and their should be resistance if not it is no good. if their is then test the ohms from terminal a to c and their also should be resistance. Now if that is all good. then u will have to test terminal b to a and their should not be resistance and that is good. then test terminal b to c and their should not be any resistance and that is ok. Now if that is good then u test terminal c to a and theit should not be any resistance. Then u test terminal c to b and their also should not be any resistance.

To tell which terminal is which look at the power transistor and have the clip facing up, where the connector locks in.