Need help please! Missing and backfiring

[wb's87]

I just drove thaw car for the first time this year after installing new timing gears, chain, comp 980 valve springs, 60# injectors, TT 6.1wb chip. Car runs terrible. Missing at idle, missing and backfiring while driving.

Any and all help is greatly appreciated.


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[Nascar83Fan]

How old is the fuel in the tank, are you sure you have everything put back together correctly and don't have any loose grounds?


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[wb's87]

The fuel in the tank was rather low and from last year. I drove to the gas station and filled up with Sunoco 93. As far as grounds go I believe I have them all connected correctly. Although there was a ground wire from the firewall that was not connected to anything when I took things apart. I did not re install it.


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[Nascar83Fan]

Are you sure you didn't hook something up differently or cross something?


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[wb's87]

I am double checking things now.


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[wb's87]

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[Nascar83Fan]

When you put the chain back on, did you verify you had the base time set and aren't off a bit where it's firing early or late on a cylinder or 2 or you didnt put a plug wire on the wrong spark plug?


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[wb's87]

Lol! I was just double checking basic things and found plug wires two and four were switched. Thank you very much for your help I am on ride right now car is running awesome!


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[Nascar83Fan]

That would do it, sometimes it's the simple stuff that gets overlooked.
Enjoy the car.


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[TLIMITED]

Lol! I was just double checking basic things and found plug wires two and four were switched. Thank you very much for your help I am on ride right now car is running awesome!


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Sounds just like something I would do.

 

[wb's87]

Sounds just like something I would do.

Welcome to my world! I go through all that work without screwing anything up and then do something as dumb as two of the plug wires that go on the coil. Lol. I could see it if they weren't marked where they go. I scare myself sometimes!

Oh well all is good now. I only had one other issue. A small oil leak where the turbo oil feed comes off the fitting into the block. I think the flare fitting must not have been seated. The car runs better and is faster than ever!

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[Nascar83Fan]

At least you caught it and nothing seemed to of been hurt in the process.

 

[TLIMITED]

Welcome to my world! I go through all that work without screwing anything up and then do something as dumb as two of the plug wires that go on the coil. Lol. I could see it if they weren't marked where they go. I scare myself sometimes!

Oh well all is good now. I only had one other issue. A small oil leak where the turbo oil feed comes off the fitting into the block. I think the flare fitting must not have been seated. The car runs better and is faster than ever!
VERY NICE CAR!!Glad it was that easy to get it right.

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