Engine stumble-Driving me up the wall.

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Jun 14, 2004 | 05:58 PM

#11

shandy294

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From: Cibolo Tx

Quote:

Originally Posted by M.Roberts

Checked my plug wires came to anywhere between .41 to .44 kohms. What are they supposed to read? Have not gotten a chance to run the truck much today big I did notice some difference with the A/c off but I have not even drove it far enough to warm the engine up so I can't say for sure. Very interesting about the A/c timing deal. I going to have to check that out. Maybe I am just having normal stuff happening, but I bet mods just amplify the problem.

I don't know what the resistance is supposed to be but that's just a static test. It could pass that but fail under load. I had a bad coil on a Honda that passed the primary and secondary res. tests and was dead as a door nail.

Jun 14, 2004 | 08:52 PM

#12

M.Roberts

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From: Turkey Creek, LA

All my plugs look Ok so I am pretty sure it is not the wires. I am leaning towards the A/C compressor causing it, because every time I turn it on with the predator hooked up the timing dips exactly at the time you turn on the A/c, and guess that happens every time it cycles. This was not noticible before mods. What mod could make this more noticible like it does now? Probably cam. would be my guess.

Jun 15, 2004 | 04:59 PM

#13

deezel

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From: Dallas

Is your MAF stock, descreened, or what?
I have seen some funny airflow readings from a descreened MAF... this also caused lower timing for a few seconds.

Jun 15, 2004 | 05:25 PM

#14

M.Roberts

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From: Turkey Creek, LA

Maf is stock. I might have to give it a once over too. I have cleaned about 8 months ago It may be messed up.

Jun 15, 2004 | 07:32 PM

#15

TigerFan187

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From: Louisiana

For some reason I remember reading a while back that people were ahving problems with Predator custom tunes. Anyone remeber this? I dont thik it was as far back as last year but it might have been. But then again I remember hearing that thye fixed it to or were in the process of fixing them! Either way Good Luck.