No Fire on Cylinders 1&4

[1997_GST]

Ok, so I have a 97 Gst 5spd. When I first got the car running I couldn't get cylinders 2 and 3 to fire. Then all I did to fix it was wiggle the wires around by the power transistor and it worked... well after a few weeks of driving it, it started it again. But I could get it to run fine after just unplugging the ecu then plugging it back in. Then one day I stopped to get gas and after filling up I tried to start the car again and I could not get it running for shit! So I then went and rented a tow dolly and pulled it home.

Now I can get the thing started but only fires on cylinders 2&3 not 1&4.

I have Tried 2 different ecus, 2 different power transistors, a brand new coil pack, brand new ngk bpr6es plugs and brand new ngk wires! Nothing has changed anything!

I do have 4 cel codes.
p1105- Fuel pressure solenoid
p0300- Random Misfire (this code pops up twice)
p0135- o2 heater curciut Bank 1 Sensor 1.

Anyone know what else may be... I would like to hope its not the Crank sensor cause I don't want to take all that timing stuff off...but if it's my last option it's my last option.

Thanks in advanced!

 

[92AWDHX40]

Fix the codes first, is what i would do.

 

[pj91gsx]

The cylinders firing on 2, was the transistor pack for me, or PTU(power transistor unit). It can also be the cam angle sensor, but try a used transistor first.

 

[razrman8]

^^+1

Fixing all of the codes you can wont hurt anything. Especially fuel pressure solenoid seeing as how ignition and fuel work together. Not saying thats the problem. Just what I would do

 

[1997_GST]

I Have been looking for the fuel pressure solenoid for a while but cant seem to find one... but the I did have that code before the problem occured... but i still would like to get rid of the cel codes...

but like I said PJ I have tried a diff transistor and it still does it :/

If it was the cam angle sensor wouldn't I get a code for it? J/W... and I'm also not sure how the cam angle has to do with spark... I've heard that the cam and crank sensor have to do with spark but always get confused how each one involes with spark... if someone can clarify??

Thanks for the replies!

 

[Afroclipse]

Coils fire 2-3 and 1-4.

Come on people this is a no brainer, check coil for resistance, the wires, then transistor, and last but not least CAS.

I Have been looking for the fuel pressure solenoid for a while but cant seem to find one... but the I did have that code before the problem occured... but i still would like to get rid of the cel codes...

but like I said PJ I have tried a diff transistor and it still does it :/

If it was the cam angle sensor wouldn't I get a code for it? J/W... and I'm also not sure how the cam angle has to do with spark... I've heard that the cam and crank sensor have to do with spark but always get confused how each one involes with spark... if someone can clarify??

Thanks for the replies!

CAM sensor tells the ecu when to fire injectors and spark, research man, you are sitting on an encyclopaedia of info on this site.

 

[JuGs]

Coils fire 2-3 and 1-4.

Come on people this is a no brainer, check coil for resistance, the wires, then transistor, and last but not least CAS.



CAM sensor tells the ecu when to fire injectors and spark, research man, you are sitting on an encyclopaedia of info on this site.

+1

only 2 cylinders firing can be 3 most likly things cas, crank sensor or coil packs. since you replaced the packs id check those 2 sensors

 

[1997_GST]

I tried a brand new coil, a diff transistor, and plug wires are brand new as stated above.

When researching the Cam Angle Sensors and the Crank Angle Sensor people talk about CAS which abbrev. for both of them... So how am I supposed to know which they're talking about??

 

[JuGs]

CAS = cam angle sensor

crank sensor is just crank sensor

 

[1997_GST]

AH.. ok thanks for clarifying!

 

[Afroclipse]

AH.. ok thanks for clarifying!

You should have paid more attention to which one youu have, since you have a 97 you have a black top cam sensor. Changing parts doesn't work all the time if you don't know what the issue is, check resistance and report back.

 

[1997_GST]

The issue is no spark getting to 1&4. and How wouldn't replacing parts help me determine what part is bad? if I put in a brand new coil pack and it had the same issue then it's obvious that my problem was not the coil pack...and I know what cam sensor i have and I know what they look like on the earlier models and what they look like on the 97-99... I've had about 7 of these all ranging through the 2g years.

 

[Afroclipse]

The issue is no spark getting to 1&4. and How wouldn't replacing parts help me determine what part is bad? if I put in a brand new coil pack and it had the same issue then it's obvious that my problem was not the coil pack...and I know what cam sensor i have and I know what they look like on the earlier models and what they look like on the 97-99... I've had about 7 of these all ranging through the 2g years.

I meant report back with ohm numbers not how many cas's you have owned.

 

[Dewayne Waldron]

I went through the trouble or changing out multiple coil packs, ptu's and cam sensors. My problem in the end was the ecu.

 

[1997_GST]

i never mentioned how many cas's i have owned... and its not the coil pack..

to anyone else that offered good info instead of trying to insult everyone else by saying its a no brainer... but i noticed my cam sensor cracked and when the car is idling if i push on it the car dies... so im buying a new cam sensor and seeing if that fixes it... also i have tried 3 ecus but all 3 could be bad.. but im not sure how likley...

 

[1997_GST]

I fixed my car today! Come to be the wiring going to the power transistor. When I soldered the new connector on I mixed up the two black with white stripe wires... My mistake! Well I was fixing my o2 sensor and touched the wrong wires together and I guess fried my ecu. but luckily I had 2 spares!

 

[AllWheelRS]

I fixed my car today! Come to be the wiring going to the power transistor. When I soldered the new connector on I mixed up the two black with white stripe wires... My mistake! Well I was fixing my o2 sensor and touched the wrong wires together and I guess fried my ecu. but luckily I had 2 spares!

Don't forget to updat the thread title to reflect your problem was resolved.

 

[1997_GST]

Not sure how...

 

[NSPtuning]

Hey Im sorry to post an a resolved thread, but being a new member I cannot start a thread of my own. I have a fair amount of experience with DSM's and have come to know most of their common faults. However recently a car we towed to my shop that I am having a hard time finding info about.

Problem:

Basically the same thing stated in this thread but cylinder 2 and 3 are not firing.

What I have found so far:

Started looking around the engine bay. Obvious there has been some wiring/re-wiring/re-wiring the re-wiring going on if you know what I mean. Tested the ECU, PTU, checked cam timing and found no faults. Moved on to the cam sensor and.... its not plugged in? I unwrapped all the electrical tape around the wiring and its all hacked up. It looks like they wired the factory harness into something else?

From what I can tell the car has DSMLink installed because the firing order is backwards. Is there anything you guys can tell me about this setup? I really want to try and help this kid out. Bought the car from a dealership a week ago.

Once again I apologize for posting in this way, but through hours of google research and searching on the forum I cannot find anything explaining why the CAS would be unplugged/rewired in this fashion.

I have pics if that helps. Thanks in advance.

 

[1997_GST]

I don't know why the CAS would be unplugged unless they got the older cam sensor... Check to see it there is a sensor under the actual cam gear... it would be on the bottom of the cam gear closest to the firewall...if not, splice a new connector on and plug it up and see what it does.

Also, is this a 1g or 2g.. also what year.