I explained to Dale the other night , that would be a good place to startRam From Hell said:Mine just has no spark, period.
I'm really, REALLY hoping it's that crank sensor!
If it's the cam sensor, the ProCharger may have to come off first.
Working one day, not the next? Barely runs.
- Thread starter Ram From Hell
- Start date
Ram From Hell
Full Access Member
Bone said:
Might swap the crank sensor tonight, unless I get lucky.
...and by lucky, I don't mean find the problem w/ the truck.
Dom426
Full Access Member
is your bf comin overRam From Hell said:Might swap the crank sensor tonight, unless I get lucky.
...and by lucky, I don't mean find the problem w/ the truck.
Eric we need pics...and not of your truck!
Prof said:
Go to the pictures I posted of Dale's party. Third picture from the bottom.
And you said I was in a "drunken stupor".:dontknow:
Silverback said:Go to the pictures I posted of Dale's party. Third picture from the bottom.
And you said I was in a "drunken stupor".:dontknow:
Where is that thread??? I missed the pictures...
Black1
Full Access Member
tinygiants said:
Thanks, Dale... I didn't see that thread either. COOL!
And congrats on the Proposal!!!!! :congrats: :congrats: :congrats: :congrats:
Wow, glad I asked! The pictures of the proposal are priceless!
Ram From Hell
Full Access Member
505'sFastestViper. said:is your bf comin over
Yeah. My Breast Friend.
The gal in the pic is a good friend. Her company has helped keep me sane these last few months.
Now, back on topic.
UPDATE ON TRUCK:
Replaced crank sensor and... nothing.
Will order cam position sensor Monday. Looks like I'll be able to do the installation by removal of just one small piece of the ProCharger bracket, so it shouldn't be too big of a bitch.
So enough for tonight. I'm baking some goodies to go with some ice cream, and forget about it for now.
Damn, I hope the cam sensor is the issue...this has been a real mystery...hoping for the best soon!
Ram From Hell
Full Access Member
Prof said:
I honestly don't know what else I could check.
If the cam sensor doesn't resolve the problem, I may just trailer it down to my tuner's shop in Portland. He knows his way around Gen III's and IV's very, very well, and could finish up the dyno tuning at the same time.
You are very patient. I would have done that a month ago.
robwclark
Full Access Member
I have been sitting at my computer for an hour thinking about your problem. I dont think any sensor is gonna fix the problem. Your truck is seriously modified, and seriously modified vehicles have serious tough to find problems. I bet it has something to do with factory wiring that has been tied in-to, or software related. Not getting spark to 3 of 10 cylinders consistantly can only be caused by so-many things. Could be your aftermarket computer/tuner has an issue, or where it is tied into the factory harness has an issue. Cam sensor could be the problem, but I bet not.
My experience says an abnormal problem like this was caused because of modifications, and NOT failed factory parts. Think of everything non-factory you have placed on the truck that could effect spark. Go to those areas(computer tuning/wiring) and recheck everything. Could be a defective computer/pcm that has had some kind of modification. Thats the best advice I can give you. Robert. Cya
My experience says an abnormal problem like this was caused because of modifications, and NOT failed factory parts. Think of everything non-factory you have placed on the truck that could effect spark. Go to those areas(computer tuning/wiring) and recheck everything. Could be a defective computer/pcm that has had some kind of modification. Thats the best advice I can give you. Robert. Cya
Good input Robert...that is a logical approach to a really elusive problem. If only Eric had a Vec III...then we could start there!
Ram From Hell
Full Access Member
robwclark said:
Thanks for your input Robert.
If you re-read my post though, you'll see that I tested 7 of 10 cylinders (to ensure I was seeing both coil packs), but did not say that I'm only getting spark on 3 of 10 cylinders. In actuality, I am getting ZERO spark on any cylinders. Were I getting spark to a few cylinders, I'd probably have solved this by now.
Also, I've completely bypassed the AEM and tried running on the factory ECU with the same results. That said, aside from the spark plug wires, there were no non-factory components or wiring left in the system during that test. Trust that my first thoughts when something isn't working properly is that it's something that's been modded. That's why I eliminated everything outside of the factory setup.
My understanding of the ignition system is that it will not work without both good cam and crank trigger signals. The ECU needs to see the cam signal to initiate the ignition sequence, then the crank trigger signal is used to maintain ignition timing. If I install a new cam sensor, aside from coil packs it appears to be the last component in question. I just don't think both coil packs would give up the ghost at the same time.
So, if a new cam sensor doesn't fix the problem, I'm gonna give up and hand it over to my tuner. Because at that point, it will be beyond me. It will take someone who is knowledgeable enough with the engine harness that they can identify the right wires, and know what voltages and signals should be present. I'm not stupid, electrically speaking, but this will call for someone with knowledge and ability that I lack.
Prof said:
..and we'd start be throwing the VEC out, and getting a Pectel!
Last edited:
That's a harsh approach...but probably the fastest way to a solution!
FerrariTruck
Full Access Member
Eric, im a little confused now. Initially you said the truck was running very
rough...Now your saying the truck does not produce a spark(and doesnt start
anymore?) How are you n checking for spark? with a timing gun or an actual
in-line spark plug tester?
As far as the FC for map sensor, did you look into that? Does it come back
after you cleared it? I would be concerned with it since it does give vital
information for the motor to run right.
rough...Now your saying the truck does not produce a spark(and doesnt start
anymore?) How are you n checking for spark? with a timing gun or an actual
in-line spark plug tester?
As far as the FC for map sensor, did you look into that? Does it come back
after you cleared it? I would be concerned with it since it does give vital
information for the motor to run right.
Dom426
Full Access Member
the vec 3 has tuned the highest hp truck on this forum with no problems.....it works and works well.....i have spent a lot of money on my truck just like you eric but ...i can not justify 10k...for a tuner ....just cant do it......Ram From Hell said:Thanks for your input Robert.
..and we'd start be throwing the VEC out, and getting a Pectel!
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