My car won't start

[Rulier]

Okay so I just recently got a 96 GS-T manual transmission from my dad, bought him a car, took his . Here's the problem I'm having watch video.

<embed width="600" height="361" type="application/x-shockwave-flash" allowFullscreen="true" allowNetworking="all" wmode="transparent" src="http://static.photobucket.com/player.swf?file=http://vid15.photobucket.com/albums/a390/Rulier/Carro/DSCF1400.mp4">

Heres the full bio. Other than the car doesnt mark how fast i was going and an annoying check engine light my dad told me the car was fine. So went to autozone to have it checked gave me this errors:

P0136 -Oxygen Sensor 2
P0141 -(Heated Oxygen) Sensor Heater
P0300 -Random Misfire
P0325 -Knock Sensor
P1400 -Manifold Differential Pressure Sensor

After that the car started having a weird idle where it lowered to 0rpm but wouldnt turn off. When accelerated It would rocket up to 5 rpm this happend in every gear.

Suddenly the car wouldnt start so replaced the battery (the battery it was using wasnt desgined for the car ), replaced ignition coils, plugs and wires to fix the random misfire. Went to autozone again now error P0136 gone but two new came along:

P0120 -Throttle Position Circuit
P0500 - Vehicle Speed Sensor

After that when i went to turn the car off it wouldn't, lasted for a few seconds. Tried to turn it on again it did drove back home heard 2 loud explosions car turned off while in motion (this was hapend before except without the explosions) Towe dit back home tried starting ti again but it didn't want to (see the video).

Things I tried: Tired of paying the mechanic to not fix the problem.

-Checked everything it all pointed to the ECM

-Electromechanic fixed the ECM , it had a melted strip and a capacitor (solved the problem for a day)

-When puting the ignition couldnt hear the fuel pump, thought that was it. Put some cables to make it directly to the battery, heard it working but still wouldnt start, Took it out, tested it, worked fine.

Means no current is going to the fuel pump but even though puting it directly the car wont start.

Really need some help here.

 

[tallywacker]

Did you check to see if your sparkplugs are firing?

 

[Rulier]

I checked there getting spark. In one of the tests the car suddenly started! After a while it'll turn off. Is it the wiring?

 

[tallywacker]

Check all the chassis grounds.

 

[Reefman]

Fuel pump relay?

 

[Rulier]

I tried looking for the fuel pump relay, checked a post here that it said it was inside the dash but I couldn't find it.

What grounds am I looking for? I don't know where all of them are, so can't say if there are missing or not,

Thanks

 

[Dsm4lyfe12]

Fuel pump relay is the problem on the start. i'd recheck 10 times over. it took me that to find mine and now it runs great!

 

[GSXSixteenG]

Could be a fuel pressure problem if you are indeed getting fuel. Pull the fuel pressure regulator and fuel filter.

 

[d0sitmatr]

I thought the FP relay was under the hood ?

 

[Rulier]

I thought the FP relay was under the hood ?

That's for the non turbo models

Could be a fuel pressure problem if you are indeed getting fuel. Pull the fuel pressure regulator and fuel filter.

Haven't checked the fuel pressure regulator but the fuel filter is new.

Fuel pump relay is the problem on the start. i'd recheck 10 times over. it took me that to find mine and now it runs great!

I checked to see if I could find it on the right side of the dash but couldn't find it. Previous owner installed aftermarket radio. So the relay could have been moved. Ill check behind the ECU next time.

Check all the chassis grounds.

I checked 2 grounds on the motor they seemed fine but don't know if that's all of them.

 

[Rulier]

Fixed it!

At first car started again but after a while it turned off again. Took it for a test run it doesnt have the small explosions and runs great.

But now for some reason, it refuses to take 4th gear. Don't think its related to the other problems. Someone told me that this cars have some kind of problem with that.

Anyone else had this problem?

 

[AK Maniak]

Damn is that 49xxx miles.

 

[Rulier]

Yeah 49,975 it's probably due to the speed sensor not connected, broken or something.

 

[AK Maniak]

Yeah 49,975 it's probably due to the speed sensor not connected, broken or something.

Ha okay because when I saw that I was like I've never seen a 96 with that low of miles