Author Topic: I need some Serious $#%@#$in Help seriously (Read 26730 times)

DesktopDave · « **Reply #90 on:** February 06, 2012, 04:35:06 PM »

Ignition problems are troublesome to track down. We found one that had a bad coil AND a bad DME. The coil drivers tend to be killed when the coils die. Rob's COP kit is a great solution to the problem...I have one and will heartily recommend it.

MPG gauge is just a calculator. It uses the injector bandwidth divided by MPH to get your instant MPG.

LoneWolf · « **Reply #91 on:** February 06, 2012, 08:59:47 PM »

Quote from: DesktopDave;110046

Ignition problems are troublesome to track down. We found one that had a bad coil AND a bad DME. The coil drivers tend to be killed when the coils die. Rob's COP kit is a great solution to the problem...I have one and will heartily recommend it.

MPG gauge is just a calculator. It uses the injector bandwidth divided by MPH to get your instant MPG.

The mpg gauges is either at zero mpg when I give it any gas at all or 40 mpg when I let off. There is no in between.

This weekend I want to do a tune up (plugs, wires, air and fuel filter) and I want to redo the vacuum hoses and clean the icv

Little back round on the symptoms, seems like mine didn't have any issues when it is cold. But once the car is warmed up and I stop at a couple lights, the idle begins to flutter and I get this miss/stutter under acceleration. The miss seems to go right with my gas pedal input.

I probably should make my own thread.

DesktopDave · « **Reply #92 on:** February 07, 2012, 07:18:18 AM »

I had the same problem with my gauge when the diff speed sensor was flaking out. But the speedo would also hesitate as it swept across the gauge face.

Did you check the coolant temp sensor or the air temp sensor? Might be the O2 as well. I think what's going on is that once the car is warmed up, one of those senors is still reporting full cold; the injection keeps it rich, and you get spark plug misfires. Alternatively, the O2 isn't reporting the right exhaust mix. If the problem goes away at WOT, it's likely not the O2 sensor though.

A cheap test is to look at the plugs and see if they're black & sooty with fuel deposits.

Wrench · « **Reply #93 on:** March 04, 2012, 10:17:42 PM »

I just read this entire thread hoping to find an answer to this nagging bucking misfire issue. I think I'm one of four or five people on here that have had or are having this problem.