engine starts, then dies.

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

I got this problem...my engine starts up, then right after it starts, it dies. If i press the gas to keep the revs up, it'll stay on. what's up with this?? AAC valve? AIV valve? PCV valve? sorry if this sounds newbie...i'm new to cars

thanks.

Post by **slw240sx** » Fri Jan 31, 2003 8:34 pm

bump ...

im having the same problem on my Ca18det!!!

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

bump...for THE LOVE OF the KA24 and CA18!!!

edit: forgot to say that i have ka24de and this problem happens, then goes away and then happens....it's rreally random. At first i thought it was the fuel filter, so i replaced that and the problem didn't happen and then i happened again........

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

Post by **Queamore** » Fri Jan 31, 2003 8:34 pm

Man that could be anything. bad sensors, fuel injector, pump, spark, ground, bad gas, alternator.

adjust the throttle a litle bit so it'll stay on and take it to the mechanic spend 40 bucks and have them check it out and tell you what the problem is. Thats the easiest way.

Post by **PalmerWMD** » Fri Jan 31, 2003 8:34 pm

transfered to online mechanic.

Post by **drjohn** » Fri Jan 31, 2003 8:34 pm

This sounds like a connection problem at possibly the airflow meter or the coolant temp sensor. Check these and the injector connections for the green plague, corrosion. If so they will need to be cleaned with a good contact cleaner. Check with Radio Shack.

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

i checked for the green crap, and i saw that it's on the battery + wires going from the battery. i dunno if that's near the afm or coolant temp sensor.

PS: i've already gotten all the parts to replace the wires and terminals... i just need a new battery now.

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

Queamore wrote:Man that could be anything. bad sensors, fuel injector, pump, spark, ground, bad gas, alternator.

adjust the throttle a litle bit so it'll stay on and take it to the mechanic spend 40 bucks and have them check it out and tell you what the problem is. Thats the easiest way.

the thing is, it doesn't do this every day...only sometimes. such as now, the car runs fine. i haven't noticed a trend as of yet. do you think a mechanic could tell me the problem if it isn't occuring when he takes a look?

Post by **Just another 240** » Fri Jan 31, 2003 8:34 pm

if the problem doesn't occurs while he's checking it. Most likely he can't tell you what's wrong with it. But who knows, maybe he's mad experience and he can tell u.

Website · Post by **AVERAGE** » Fri Jan 31, 2003 8:34 pm

sound like the same problem im having with my e16s

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

well right now i'm conducting an experiment:

my hypothesis is that since my engine is DOHC it requires premium (from the manual). I've been using 87 (regular). I've read that the ECU will retard the timing to prevent knock. This makes me think that when the ECU is adjusting the timing, the engine stalls, and when it stops detecting knock, the engine stops stalling.

it only stalls occasionally since the ECU only adjusts the timing when it detects knock, after it stops detecting knock, it moves timing back to normal. (maybe inconsistency in gas)

I'll let you know how things turn out....as soon as my car comes back from the shop...gay clutch..

Post by **ka24de_510** » Fri Jan 31, 2003 8:34 pm

First off, stop buying regular. The car is built to run premium. For an extra 2.50 a tank you might have a fully-functional car.

It could be your IACV (aka AAC) but if it only happens intermittently that's almost certainly not your problem. solenoids either work or they don't.

Even mechanics have a difficult time with intermittent problems - you may as well just swap to a CA or SR now and save yourself the hassle

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

ok, so i've filled up 2 tanks with 91 (the highest octane around here) no stalling yet, but still chugs like crazy when coming to idle from driving speed.

Post by **stutt944** » Fri Jan 31, 2003 8:34 pm

91 is the highest octane available?? where do you live? is this a common problem? i've always been able to find 93...everywhere i go.

Post by **JBJ858** » Fri Jan 31, 2003 8:34 pm

i have the same problem man..i own a 93 240sx se coupe....sometimes when it starts the car starts shaking a little bit then it just dies...mine is a 5speed also....whoa is this a proven fact that i should be using 91 octane (premium)?...ive been using 87 octane (regular)...i just had the car for about 1 month...someone please respond with this gas question?...

Post by **s0ldats** » Fri Jan 31, 2003 8:34 pm

JBJ858 wrote:i have the same problem man..i own a 93 240sx se coupe....sometimes when it starts the car starts shaking a little bit then it just dies...mine is a 5speed also....whoa is this a proven fact that i should be using 91 octane (premium)?...ive been using 87 octane (regular)...i just had the car for about 1 month...someone please respond with this gas question?...

it should say in the manual...if someone could scan the page where it says what grade fuel is required, that would be great.

edit: the gas is only part of the problem for me. when my gas level gets low (4th bar from top) it stalls as well. i'm guessing it's the fuel pressure regulator or leftover 87 octane gas.

edit2: premium is only required for DOHC, but please, someone scan that page so we all know. i can host the picture if needed.

Post by **stutt944** » Fri Jan 31, 2003 8:34 pm

i hate to be demanding (and ignorant), but noone addressed my 93-octane question. where is it available? or where is it NOT available? i'm in the S.E. and 93 is never a problem. right now i can find it for about $1.669/gal. anyone? anyone? bueller? bueller?

Post by **stutt944** » Fri Jan 31, 2003 8:34 pm

also, in reply to the actual problem at hand, i had a car a while back that i checked and replaced all of these parts mentioned...still didnt fix the problem. turned out to be a compression problem. a huge one. a bad ring (or two) plus a bad head gasket made the car only run when i kept my foot on the gas and kept it at about 2750-3000rpm. let off, and it quickly sputtered to a halt. i hate to suggest that this may be the problem, but it wouldnt be the first time. or possibly its an ecu thing. really from whats been said, it could still be about 300 things. or in dog terms, 2100 things.

Post by **DAEDALUS** » Fri Jan 31, 2003 8:34 pm

The mantra is "Check the MAF. Check the MAF. Check the MAF" Exactly what Dr. John said. I'm guessing from experience this is the problem 8 or 9 out of 10 times. The MAF is the sensor on the intake just past the airbox. There's a connector on there that gets loose and corroded. Take it off after first taking off the little wire ratainer. Scrape the terminals with a pick to clean it (DON'T bend the pins). Use some dielectric grease on them to protect from corrosion, and reasseble. Shouldn't take more than 5 minutes and is the first thing you should check if your idle isn't right.

Post by **Bryce** » Fri Jan 31, 2003 8:34 pm

My car used todo it on 91 ocatne, check for loose sensors they are the most like culprits. wiggle connections on maf and temp sensor see if car stumbles. also 91 is the highest octane on most of the west coast, you bastards in the midwest and east get 93, and we're foreever bitter. Also in washington we are paying 1.69-1.79 just for 87 we are the last place to see places drop the little that they drop. makes me feel the need to fix my bikeBryce

Post by **s13orlando** » Fri Jan 31, 2003 8:34 pm

Hello,I intermittently have the same problem on my 1991KA24DE. Hard to start,runs rich,like the injectors are dirty.I usually get a fuel additive called "TECHRON". This last time it started running rich and not starting. Therewas lot's of black smoke and the smell of gas at start up. I changed the spark plugs,and the fuel filter.My fuel mileage had dropped to 11 mpg. I usually get 22-27mpg. I had "altered" the stock air filter box a couple of years ago. I checked the box to find the air filter wasn't in position.This was after running the "TECHRON" through with two tanks of my93 OCTANE gas. It was still running bad. I discoved that air filter out of position. I believe the MAF was causing the ECUto dump fuel. I installed a K&N intake after cleaning up the mess with the original box. My fuel mileage went up to 26.9mpg on a recent trip between Orlando and Gainesville.I have been averaging 23 to 27 mpg again. I love my S13 !Bob Fagan48 yr old "Grandpa S13 Enthusiast" !"Win the Lottery and buy that R-34 from Motorex" !

Post by **rschwalbe** » Fri Jan 31, 2003 8:34 pm

I'm having the same intermittent problems on my 90 S13. It's almost like the engine is flooding itself for no apparent reason. I'm gonna try some things I saw here tomorrow.

Also, I don't think I have seen any 93 octane gas around here. We only have 87, 89, and 91.

Any other ideas for this issue would be great!

engine starts, then dies.

engine starts, then dies.

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