Codl As Hell And No Spark

[supraguy31]

Ok all, I think Ive Narrowed it down to one simply thing. If its warm outside my car starts up fine. If it gets cold, For some reason the Spark just shuts off. I can turn the car over just fine but there isnt any Spark going to the Plugs.

Can someone Please tell me what is causing this Problem.

Its Either when Its really cold outside or if its been sitting for a long Period of time. Maybe 5 day to a Week.

I dont want to get rid of a really good car because It has this Problem. But I dont Know what else to do.

Ive Changed out the Ignitor, Coil Packs, Cold start Injector and Sensor, Plug Wires. What else could it be.

Robert

 

[lagged]

are you assuming that there is no spark, or are you visually verifying that there is no spark?

 

[mk3713]

Check your codes see if you have a code 13 or14 those are for ignition signal. If there is no spark why did you change the cold start injector.

 

[supraguy31]

Eliviating all Possibliities. I did fit in the car one day with the #6 Plug out of it and Put a screwDriver in it. Turned the Key and no spark. Then all of a sudden, I turned the key again and it started sparking.

Strange but It basically sparks when it wants too. But in cold cold weather. I cant get it to do anything.

Code 12 is all im getting
Robert

 

[mk3713]

Code 12 is no rpm signal to your computer. check the wiring or cam position sensor. The computer gets no signal you get no spark.

 

[IHI-RHC7]

CPS.
Cut the wires one by one and hard wire them, or buy some new weather tight connectors.

 

[supraguy31]

So you are saying the the CPS might be the Problem. if this is the case, Why will it spark on minute and run all day and not spark the next morning? Is this due to the cold weather and Moisture or something

Robert

 

[IHI-RHC7]

It's due to a 16+ year orld wiring harness cooking next to your exhaust mani.

 

[figgie]

It's due to a 16+ year orld wiring harness cooking next to your exhaust mani.

yep that is about right

 

[johnathan1]

HELLPP!!! What color wires go to what colors??? if the connectors for the cps are missing, and i need to hard wire it correctly. i need to know where they go and what colors on the cps wiring go to the acutal wiring harness. Maybe a pic of this or?? I REALLY need help, car will not start due to corroded wiring and connector basically falling off! Thanks sooo much!!

-John

 

[tte]

Yep...check your harness...My Supra was fine till oneday I was driving n my Supra and it suddenly lost power. I pulled over and checked the fuses and saw 40 amp AM2 aND AM1 FUSES BLOWED...I bought new fuses but it kept blowing the fuses...anyway I found the problem..The harness was touching the hot EGR piping from the ERG unit to the head and the heat had melted the wires...
Was my fault...After putting back the EGR unit to pass smog I forgot to cable tie the harness to the firewall.

Cheers,
Roy