SOHC_civic_si

So, my D16Y7, has a weird problem. At points when I'm driving, or when I first start it up, it randomly dies. The problem is a little more complicated though I think, as it does not have a certain pattern. I will start up my car, and immediately it will die, start it up again, dies again, and it will repeat this process (sometimes like 15 times) till it fires up and stays running then I drive just like normal. Or in another situation, I will be driving down the highway, or in town just lightly cruising and then it will all of sudden die. What could this be? I changed my fuel filter, spark plugs, and use frequent fuel system cleaner, as well as change the oil way before its due with full synthetic. Any help?

PhantoM.DA

My car does this too, but it only happens once, sometimes twice.

jimmy o.

check engine light??

Former User

First items to consider:

1) Main relay
2) Fuel pump
3) Distributor (cap, rotor, coil, igniter)

SOHC_civic_si

There is no check engine light. Do you think it could be the fuel pump? and what is my main relay?

Former User

The main relay controls the fuel pump and fuel injector circuits.

SOHC_civic_si

Ok. so can that be replaced or? what exactly is it? like a fuse or something?

SOHC_civic_si

bump

Former User

It's an electrical relay located to the right of the glove box, which must be removed to access.

Avoid replacing parts unnecessarily ($$$) by referring to the service manuals for details about testing the relay with a multimeter.

SOHC_civic_si

Ok so basically I get the proper voltage or something that signifies its working and I can eliminate that out of the question?

Former User

As the problem is somewhat intermittent, perform each of the electrical tests multiple independent times. Getting an abnormal reading from any test would indicate a bad main relay. The multimeter used in the latter tests can also be used to test the coil and to perform ICM/igniter input tests. If no problem is found, then measure the fuel pressure to test whether the fuel pump may be faulty.

Consult the service manual for specific details.

SOHC_civic_si

Ok thanks man you've been a lot of help. If I took my car for a mechanic to do these tests, about how much would he charge me? I just don't know very much about electrical parts of cars

SOHC_civic_si

bump

SOHC_civic_si

bump.. i need help guys

duggy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_civic_si &raquo;</TD></TR><TR><TD CLASS="quote">Ok thanks man you've been a lot of help. If I took my car for a mechanic to do these tests, about how much would he charge me? I just don't know very much about electrical parts of cars</TD></TR></TABLE>

I charge $60 for a diagnostic test.

This sounds like a fuel filter problem to me. Has this been changed out yet?

SOHC_civic_si

Yes the fuel filter has been changed, as well as the spark plugs and i use fuel cleaner very frequently

v8killaz

if its the pump just check ur fuel pressure

SOHC_civic_si

ya im going to

SOHC_civic_si

bump. its not my fuel pump i checked it and its good. my injector flow is good as well. what would be the next step? check my main relay? im going to replace my wires with aftermarket ones soon cause my old ones are getting old so do you think that could help?

Nixon161

Checked your distributer yet ? Maybe the contacts are on their way out. There could pssibly be a blockage in your fuel line ? Just cause you replaced the filter doesn't mean the lines are clear. Another thing, check your gas cap, i've seen this happen, the cap won't release pressure or "vent" and kind of air lock your tank. Just a few things to look into.

wonder squirrel

Crank Position Sensor possibly acting up? Check the connector going to it, make sure its plugged in, if so, test the sensor to see if its giving a signal.

Romo Pyro

Does the car virbrate unusually at idle? (ie unusually low rpms?)

SOHC_civic_si

bump... sorry i haven't responded for awhile, i've just been really busy. distributer is fine, crank position sensor is fine, and my car does not vibrate unusually at idle. lately its been doing it more than usual. its been pretty hot here as well around 30 degrees so i'm wondering if that could have anything to do with it. today i was driving, turned a corner and right as i was shifting into 2nd it stalled like i've been telling you guys and when i turned the key to start it back up it made a loud grinding noise? what on earth could that be? it started up and died immediately like 6 times before it didn't stall and i could drive. please help guys i'm lost

SOHC_civic_si

bump.. my car is really doing it more in the hot weather. please help i dont know what else to do

SOHC_civic_si

bump. i really need help on this guys..