Check engine light on

Throws

Throws

Active member
Re: Check engine light on

SYCLONE123 said:
Ok i got code 15 temp sensor.... But is it possible that would cause my popping issue
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Sure, why not? It could be causing you to run in "open loop" for an extended period of time. Fix it... it's a couple of bucks at most for a new sensor.

-P
 
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BoostedSUV

BoostedSUV

Active member
Re: Check engine light on

Temp sensor will definitely cause issues. Reading way hot or way cold will throw off the fueling and timing because the ECM is not seeing the correct engine temp. Make sure you get the correct temp sender, there are 2. One goes to the ECM the other goes to the Gauge on the dash.
 
neildemo

neildemo

Administrator
Re: Check engine light on

I had the same problems Here is what fixed my issue.
1.)I put fresh 93 octane gas in also blended 2 gallons of e85 . "problem went away" must have had water in the tank or bad gas.
2.)My syclone did the exact same thing changed out plugs, distributor came out being one wire on the passenger. "would drive fine till I got on it."


Has your Truck been sitting a long time? Might have condensation in the tank. Replace plugs, wires, Distributor and Check your Vac lines. Basic trouble shooting. Recently changed the vac lines on my 93 and the hoses were literally breaking apart in my hand have like 20 pieces. The worst was the vac line that went to the Vacum ball. Take your time and go through your truck with a fine tooth comb check your vac lines follow them sometimes you can't see the problem in plain site. Engine compartment very tight. Good luck.
 
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SYCLONE123

Banned
Re: Check engine light on

It was sitting a long time but i got the gas out of the tank but im pretty sure there wasstill a tiny bit of bad gas, ima changed the sensor then put more fresh fuel and see how that goes.. Thanks everyonne for yyour help
 
SY-1193

SY-1193

Active member
Re: Check engine light on

SY-1193 said:
I read what you posted here. I am going to question part of what you wrote... It may just be the way you wrote it or worded it but I will ask anyway.

You wrote: "...checked timing set at 0 degrees unpluged wire by computer before changing timing."
The reason this stood out to me the way it is worded to me sounds like the timing is off.
Did you unplug the Tan/Black jumper and set the timing with a timing light/plug wire #1 to 0 timing with the wire unplugged?

Again it may just be the way you worded it but at idle your timing should read approx. 23 degrees or so with the wire plugged in. 0 degrees wire unplugged.
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Tom Renzo said:
Again it may just be the way you worded it but at idle your timing should read approx. -23 degrees or so with the wire plugged in. 0 degrees wire unplugged.
__________________
Keith

-23 ??????????????
Click to expand...

Yep, I fixed it.... I took out the (-)
the degrees would vary from different campain updates and chips - that is why I put approx.
 
S

Syclone22

Member
Re: Check engine light on

Just another tip if you already change your
temp sensor and there is still a backfire or popping
at w.o.t throttle gap your plugs at 0.030 inch this will
will help solve your issue :roll::roll:
 
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SYCLONE123

Banned
Re: Check engine light on

SY2455 said:
OK, Here you go if it will help you. With a paper clip connect ALDL terminals "A and B" Turn the KEY ON, ENGINE NOT RUNNING. When you get the codes from the check engine light. It will show the codes like this.

1. A code 12 will flash 3 times to show the system is operating normal. This will be shown as a flashing light.
Each - will = 10's, Each . will = 1's. The - is a longer duration of the check engine light on, the . is just a flash. The check engine light will show a code 12 as this.
-.. -.. -..

2. After the check engine light shows the code 12, there will be a short pause before the real important stuff. The check engine light will then begin flashing EACH trouble code 3 times before moving on to the next touble code that is store in the ECM.

3. It should look something like this.

-.. -.. -.. pause --.--.--. pause --..--..--.. pause ---...---...---... pause ---....---....---.... These would be the following. Codes 12,21,22,33,34. At the end of all the problem codes, the check engine light will again flash a code 12.


There are about 19 codes that could set the check engine light and 1 that does not. The next time it does it write the codes down and we can go from there :tup:.
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YES THANK YOU FOR THIS YOUR :2cents: WERE VERY MUCH APPRECIATED:tup:
 
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