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99 caviler electrical ignition problem


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garyb32
Novice

Feb 26, 2011, 12:53 PM

Post #1 of 8 (1358 views)
99 caviler electrical ignition problem Sign In

1999 chevy caviler, 2.2 ohv, it seems to be out of time electronicaly but i checked the timing and the gears, the timing is correct. My question is, is it out of time electronicaly? I have replaced the cam and crank sensors,
ignition module, head gasket, everything seems to be in place, but wont start, it fires thru butterfly on intake. HELP why wont it start


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 26, 2011, 1:00 PM

Post #2 of 8 (1354 views)
Re: 99 caviler electrical ignition problem Sign In

What's the history on this. How did the problem develop and what has been tried already?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



garyb32
Novice

Feb 26, 2011, 1:06 PM

Post #3 of 8 (1348 views)
Re: 99 caviler electrical ignition problem Sign In

overheated, two weeks ago, replaced water pump, thermostat, and heater core. still no heat, stalled out would not start, towed to house, replaced ignition module, head gasket, cam and crank sensors. checked the timing, belt and gears correct - removed plug one and it fires countinusaly not correctly, removed plug two same thing, telling me it is out of time electronicaly? could it be the ecm or is there something else i could check prior to replacing the ecm?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 26, 2011, 1:11 PM

Post #4 of 8 (1345 views)
Re: 99 caviler electrical ignition problem Sign In

It's not possible to be out of ignition timing and neither is a continuous spark.
Do a compression test and use a spark tester to check the spark at the end of the wire.
Use a noid light to test for injector pulse at the injectors also. let me know what the results are.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



garyb32
Novice

Feb 26, 2011, 1:33 PM

Post #5 of 8 (1340 views)
Re: 99 caviler electrical ignition problem Sign In

all plugs are firing on intake,compressiion,power and exhaust as though the computer is confused-the fact the timing was checked and found to be fine and there is good compression across the board-valves are in right position at top dead center-has us stumped


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 26, 2011, 2:19 PM

Post #6 of 8 (1327 views)
Re: 99 caviler electrical ignition problem Sign In


Quote
all plugs are firing on intake,compressiion,power and exhaust


NO, they are not. They are firing on compression and exhaust which is the way DIS ignition is supposed to work.

The computer is not confused.
Complete the testing i asked you to and post the results.
Include the fuel pressure also.


I deleted your duplicate question. Please stop posting duplicates and stop using PM to ask questions.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Feb 26, 2011, 2:22 PM)


garyb32
Novice

Feb 26, 2011, 2:30 PM

Post #7 of 8 (1319 views)
Re: 99 caviler electrical ignition problem Sign In

sorry i am new to this, i'll do the testing you asked and post it in the am
thank you for the help and no more duplicates or pms


re-tired
Veteran / Moderator
re-tired profile image

Feb 26, 2011, 9:11 PM

Post #8 of 8 (1310 views)
Re: 99 caviler electrical ignition problem Sign In

When head gasket was replaced was head checked by machine shop for cracks and warpage ?


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