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running on 3 cylinders!

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Old Jun 5, 2003 | 07:37 PM
  #1  
gta_88_kicks's Avatar
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From: Easton, MA
Car: 1988 GTA
Engine: 355
Transmission: 700 r4
running on 3 cylinders!

i am dead serious. I replaced the computer and plugs, and now my car starts, oooh yah. haha. However, it still runs like crud. It sounded like it was running on 7 cylinders, so i unplugged the wires at the distributor one at a time and numbers 2,4,6,8(yes the whole right side) and 7 did not affect the engine at all while disconnected.

then i swapped wires with number 5 and 7 to see if it was the wires that were bad, and number 7 still did not affect the engine.

so does that mean that number 7's plug is bad, how could this be if i just swapped plugs?
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Old Jun 5, 2003 | 07:43 PM
  #2  
Tom84L69's Avatar
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From: Kalamazoo,Mi,USA
Car: 84 Z28
Engine: L69: cam and porting
Transmission: T5, 3.73 rear
You need to gap the plugs if you didn't. You can check to see if your plug wires are ok by attaching a multimeter to the wire (positive side on one edn, negative on the other) and getting a reading. about 4-10 kilo-ohms ( I think that's the right unit) is what they should read. There are lots of other problems such as poor timing, a cam that is degreed in wrong, or even injectors that are not firing. There are too many problems possible for me to guess. good luck.
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Old Jun 5, 2003 | 07:49 PM
  #3  
motrbreath's Avatar
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I bought new plugs and got a bad 1 before. What are the odds of getting five though? Are you sure all your vacum lines are connected?
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Old Jun 5, 2003 | 07:53 PM
  #4  
gta_88_kicks's Avatar
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From: Easton, MA
Car: 1988 GTA
Engine: 355
Transmission: 700 r4
i gapped all the plugs timing is 6 degrees btc, cleaned injectors that all read 16 ohms, no vacuum leakes, checked with tb air cleaner, new cap and rotor and distributor, rebuilt engine, new cat, i can't think of one thing i haven't replaced that affects the running of the engine.
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Old Jun 5, 2003 | 07:55 PM
  #5  
RB83L69's Avatar
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Sounds like the right bank injector wire is unplugged.

Start there, and come back and tell us if it runs any better.
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Old Jun 5, 2003 | 08:03 PM
  #6  
gta_88_kicks's Avatar
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From: Easton, MA
Car: 1988 GTA
Engine: 355
Transmission: 700 r4
right bank injector wire? where does it plug into?
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Old Jun 5, 2003 | 09:11 PM
  #7  
RB83L69's Avatar
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Start at an injector and follow the wire.
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Old Jun 5, 2003 | 09:33 PM
  #8  
gta_88_kicks's Avatar
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From: Easton, MA
Car: 1988 GTA
Engine: 355
Transmission: 700 r4
yah, but doesn't it just go into the harness?
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Old Jun 5, 2003 | 11:13 PM
  #9  
dimented24x7's Avatar
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
i beleive there is also a fuse for each bank of injectors If all even or odd side injectors are dead, then the fuse would be a good place to start. I dont know exacly where the fuse is, though. As easy way to verify if their dead is to take a screwdriver and palce its tip on the injector in question and put your ear to the handle. You should be able to hear a steady clicking as the injector opens and closes.
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Old Jun 6, 2003 | 04:10 PM
  #10  
gta_88_kicks's Avatar
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From: Easton, MA
Car: 1988 GTA
Engine: 355
Transmission: 700 r4
thanks ill try that
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