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Need help : Vr6 obd1 won't start.

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6.2K views 16 replies 6 participants last post by  dubbin95  
J
#1 ·
as the title's sayin

i had a little problem with my car yesterday.

The car is a 95 obd1 engine (coilpack)

vr6


Turn the key everything goes ok. drove the car for bout 1 hour. turned it off, re-started it a few times,since there,no problem.

I go gas station,put some gas in, get back in the car try to start it :

Starter's turning, but no start.

I try few times nothing to do. Decide to push it down the parking,40km/h roll,put 2nd clutch, The car bounche,then goes ; beuuu beuuuuu beu. (while crossing the gas pedal).then shut down.

Leave the car there,come back 3 hours later.get in the car,turn the key Vroum. Car starts.

Drive it back home. everything is ok.i re-started it once arrived in the parking,everything seems ok.

After supper,Make a test,by my own,go around the block.Shut down the car,try to restart it,Same ****'s happening!


GOt any idea?:banghead:
 
V
#4 ·
If the car runs well when it runs then it is usually a bad connection or tired sensor.

Ignition switch is a definite known issue. As post above states if you can get the car to start with different key handling then you know your problem.

I would also clean the crank position sensor contacts. This sensor's connector is down low in the muck.
If that doesn't do it I would clean the ecu connector contacts (1000 grit). This is a known issue that water gets in and corrodes the ECU connector contacts.

Crank position and cam position sensors can get weak and cause synchronization issues.
I had one ECU that detected this and one that didn't, so the sensors and their status via the ECU can be borderline.

Also battery connections and grounds are important to clean at this age car.
 
J
#5 ·
THanks guys for the answers i appreciate it.

update is : This morning,went into the car,Tryed To -re-start it?

Battery is totally dead.?Didnt left any radio or light open in the car tho?

Get it boosted : Crank,Starter is turning,nothing's hapenning.

Another fact that could be interesting to be shared :

My ignition switch has a loose.Everytime i use to Start the car,i had to play with the key up n down,while ''Starting'',THen Vroum the car goes ok.

(Everytime that ive use to start the engine,in the morning or as a cold start.i had to do this with the key or else,starter's turning but engine wont start)

I'd think about Ignition switch that finally,totally,died?BUT! My battery,dead this morning?Im wondering and wondering!

Ill go switch up the battery- re-try it, Then keep u updated guys! If you guys got any other ideas ur welcome!!
 
J
#8 ·
hi Guys! Here's a little update,i've been busy during the last days,making a few tests,too.


I think i'd cancel the ignition switch problem,related to what's actually happening.

I've been doing a few runs around,and the car was running great,so i kept driving,wondering wondering and wondering!,i was thinking about getting it scanned in the next days,make sure this kinda badluck don't happen again.

So there we go : Battery was just empty cauz of my many attempt to start the car (I bet,) Didn't discharged again.

-Ignition seems ok.I've noticed since a while that there's a little loose in it,but Always been shaking the key a little n started great. (Also changed the ignition switch 2X on it, once while changing the whole steering colomn thing. what a kool job to do :) )


-This morning,While going to Work, everything's fine,It's humid a little in the morning when i get in the car. So i'm thinking : if it's a misfiring problem,Then well see it right away


-Car starts great,everything runs fine,i'm onto the highway since 20 minutes?There's a subaru wrx,new ones? cut me,n try to tease me. being a gentleman,i slowly downshift it in 4 th, (80mph Roll)

Then, there it goes : Breeee breee breee bree (Kinda sound it does while pushing the gas pedal)

Car's loosing power.slowing down slowly. I downshift in 3Rd, (Now rolling at ? 50 mph?) Breee breee bree, let the car go,park it onto the side of the highway.Then it shut down.

For a second i was scared, did i downshift this like a noob?N put it in 2nd instead of 4th? Nahhh...don't think so.

Try to re-start the car,Same problem as a few days earlier is happening. Starter's turning,but the car don't start. Let it chill for 15 minutes, turn the key, Broom, Car starts A1.

As i've read by one of u guy?My Gas Pump Could be Dying slowly?? Relay? Computer?
I've changed The Whole Harness,to a Mint One last summer,So i'll remove this from the ''Problem possibility list''.

Thanks for help,im still seeking :)
 
D
#9 ·
i dont see why it would be a fuel pump issue if it runs and stays running. have you tried when it dies to cycle the key multiple times to allow it to build up pressure before you crank it? that can help you rule out the fuel pump. or just dissconnect the fuel line at the rail and see if you get fuel up there. it sounds to me like its something simple stupid.
 
J
#10 ·
Yep Dude,ive tryed turning the key at ''on'' 3 time,before i crank it.to send him a good fuel pressure.

nothing different.

Ill chek my sensors one by one tomorrow,i'm just trying to save the 100$ check,at the Stealer,or any speedshop that like to steal ur money (in Quebec) u know how it is.:(
 
D
#11 ·
When this happens do you know if you have spark? Next time it happens try and check to see if you do have it. Like i said check your crank sensor seeing how that controls your spark. Ohm it out and see if its within specs. I dont know the specs off hand but if you need them i can get them for you. Do you notice that if you go over bumps it does it? And does it only happen when its at operating temp?
 
J
#13 ·
Update !! :


-Cleaned the crank sensor

-cleaned the Ecu connectors.

Then. Noticed that there were a Ground (Engine one,that goes onto the battery Pole) NOt the biggest one. one of the smalls ones.

That was looose. Cut,re-made it, Been running for the whole night with the car,without any problem Yet.

I think i might finally have found it? does it make sense to you guys?

Something stupid (like most of you guys said) Ill try driving it around for a few days again,see if the problem is really Repaired.

Thanks a lot :)
 
J
#14 ·
been running the car for a week, no power loss re-happened,the car didnt shut down while being drive.
:thumbup:
So 50% of the problem is solved. It was a (one of the 2 smalls ones) That connect to the negative pole. fixed it.

The car sometimes,need to be tryed 3-4 times before it starts.

Starter's turning but car has difficulty to start tho?

Any idea?Starter SHot?

thanks a lot for the help guys:)
 
D
#15 ·
i had a short in my engine coolant temp sensor(middle or blue one on t-stat housing) for the longest time. it was giving me really hard starts had to cycle the key multiple times and than play with the gas pedal to get it to run. id check to see if you have voltage there, its really common on the cars for the wire to get chaffed or the connector to get loose. you should have 5v there. do that test and see what you come up with. let me know.:thumbup:
 
V
#16 ·
NOW I remember what the breee breee sounds is!
Definitely that sound comes when there is arcing in a power circuit like from the loose wire you found.
When I got that it was when a power adapter would get loose in the cigarette lighter and cause arcing, then just like you describe breee breee! Sorry I didn't remember that earlier.

Hard starts are a pain. Since you have tried multiple primes before cranking it probably isn't the fuel pump but if you want to really rule it out then jumper the fuel pump and let it run for several seconds before trying to turn over. If it starts easier then you know where to focus. I know the multiple primes should simulate the same thing but there is no substitute for having the pump run for many seconds before cranking, especially if there is a real problem in fuel delivery.
If not, then I would consider new crank sensor then follow up with a cam sensor if no improvement. My guess is your are not getting spark or fuel when it is not starting, so crank and cam is it. Crank and cam sensors get tired. Again, I had one ecu detect out of spec sensors and one that didn't so the sensors and their detection can be borderline.

Have you blinked out codes? Learn to do this if you haven't done so. Not everything that throws a code throws a CEL.
How old is the fuel filter?
 
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