my younger brothers 90 integra is havin starting problems. sometimes after its just been running, it will start up, but then just die out. if it sits for a few minutes it will usually start and run good. could this just be the fuel filter? it was recently replaced. any advice is appreciated.

 

could be a crank sensor

 

where is the crank sensor and what does it do? why would it only stall if it had just been running, but letting it sit helps?

 

can someone elaborate? when the car is in neutral or reverse, the RPMs are fine, but once its in drive, sometimes the RPMs drop so low that the car stalls.

 

How many miles are on the car? Try changing the main fuel relay ($75 new or almost free if you re-solder the old one yourself)

My car would do the exact same thing, and things got worse in hot weather in between warm starts.

 

thats the relay in the fuse box under the hood right? what do i have to resolder?

around 150k on the car.

 

It's actually under the steering column, real easy to fix or change. Just do a search for main fuel relay. Good luck.

 

im having problems locating the relay. what color is it? (90 integra remember)

 

??? a picture maybe?

 

okay...main thing...i think the question's a bit too vague and there isn't enough detail.
Here's my 2 cents...check the vacuum.

 

i really think its the fuel pump relay. i just cant find it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by klutch44 &raquo;</TD></TR><TR><TD CLASS="quote">im having problems locating the relay. what color is it? (90 integra remember)</TD></TR></TABLE>

It's gray with a 10mm bolt holding it down.... I doubt that's the problem though.

 

why do you doubt its the problem? everyone is telling me to check it and this relay has caused problems for alot of people.

 

heres a picture, someone point out where this fuel relay is.

 

its the balck box that has the green writing on it....and it has a big white pug on it

 

wrong!that is blinker relay the main RELAY IS RIGHT BEHIND IT THE BROWN ONE

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by importdude2000 &raquo;</TD></TR><TR><TD CLASS="quote">wrong!that is blinker relay the main RELAY IS RIGHT BEHIND IT THE BROWN ONE</TD></TR></TABLE>

oops......lol...i forgot about that. sry for misinforming you , .lol....open mouth insert foot

 

thanks. i was looking for a grey one.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by troublecodes &raquo;</TD></TR><TR><TD CLASS="quote">okay...main thing...i think the question's a bit too vague and there isn't enough detail.
Here's my 2 cents...check the vacuum.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slomofo &raquo;</TD></TR><TR><TD CLASS="quote">It's gray with a 10mm bolt holding it down.... I doubt that's the problem though.</TD></TR></TABLE>

Not enought detail? 1990, 150,000 miles, runs good but hard to start when warm/hot. What more detail do you need? Here's my 2 cents ... it's not a vacuum line. If it was, the car wouldn't run well after starting.

Slomofo, you say you doubt that the MFR is the problem. But you don't suggest any other possibilities.

Frankly, I'm surprised that the MFR lasted this long before failing. If the problem persists after replacing it, your igniter could be the problem.

 

well, today it is really really hot. he came home from school while i was working on my car, and it was running fine. he shut it off, and came back to it after a short period of time, and it wouldnt start. i took out the MFR, took it apart to look at the soldering, and it looked fine so i gave it back to him and told him to try it again. the car started fine.

could the reason it started be because i took the relay into my house and let it cool down? it didnt do anything else to it.

 

It is probably the main relay, they usually stick open when hot. If you tap them with a hammer it will usually unstick it and allow it too work. You can usually just bang on the dash to get them to work as well. (if you know where to hit it ) Letting them cool down will also help them. As for resoldering them, I have never seen a main relay with a cold solder problem, it is usually the contacts on the mechanical portion of the relay itself, no chance of fixing those.

One poster mentioned the crank sensor (?) a 1990 Integra does not have any senors on the crank so I REALLY doubt that is the problem

 

yeah, the solder looked fine. im just gonna grab one from another integra and see it solves the problem.