Question about 1993 Pontiac Bonneville

8 Answers

Bonneville ssei i have a 93 pont bonneville ssei,92000 1 owner mi.stored it for 5 yrs.ran fine.wont start,new fuel pump, fuel regulater,crank shaft senser,filter,no blown fuses,good spark,spray start fluid in throttle body,it fires,good fuel pressure.HELP,

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  • kkevsr Oct 31, 2008

    yes dropped fuel tank & cleaned it out.

  • kkevsr Oct 31, 2008

    also pulled injecters out put new o rings on,just not getting any fuel

  • kkevsr Oct 31, 2008

    how can i check the injecters?

  • kkevsr Oct 31, 2008

    i am sure i am getting good ground,i checked the f inject.elect plug.on the black wire i get a pulsing with a test light,on the red wire i got nothing

  • kkevsr Oct 31, 2008

    also new pcm,no error codes

  • kkevsr Oct 31, 2008

    i m not sure about the wires except that the red wire on the plug doesnt have any power,the bl wire pulses when cranking

  • kkevsr Oct 31, 2008

    is the red wire supposed to have power with the key on?if so what would prevent it oter than a fuse,any sensers or modules or relay to prevent it from having power?

  • kkevsr Oct 31, 2008

    i did the fuel pressure test,45 psi.did the noid .no signal.but i do get a signal with a tester

  • kkevsr Oct 31, 2008

    hey emission,ive been working on thuis car for 2 mo.s.ive done the pressure test ,noid test ,fireing test,thats why im here,to see if some has something i havent done!!!!!!!!!!1

  • kkevsr Oct 31, 2008

    screw off wiz kid

  • kkevsr Nov 01, 2008

    ty toyoya ed,i am going to check that.i appreciate the straight answer ,i ll let you know what happens.again thanks

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8 Answers

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  • Pontiac Master
  • 19,396 Answers

Nice solution Toyota Ed, put that in tip and tricks under Pontiac Bonneville.

At emission wizard:unfortunately, with the new system the user cannot see your solution after one of your comments had been refused, that is probably the reason why the user did not answer to your comments.

Posted on Nov 02, 2008

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Fixexpert, Hondachopper, RonaldSuboc, Kevin000, Chad7, please step off, you are ALL WRONG, and your info is 100% USELESS.
If you HAD ANY experience re this issue, you would KNOW THE FOLLOWING:

Kkvesr, What you need to look for, is the main ECU ground point at the LF rocker panel rail; lift the carpet to see this, between the seat and the rocker...there are several wires going to a corrugated "star washer". If you are NOT getting a ground pulse in the RED wire, your main ECU ground, at the wire position described above, may be corroded. if so, no injection.
This is a very common problem, unique to the Bonneville.
Please advise me if this helps, and thanks for choosing FixYa.

Posted on Nov 01, 2008

  • Toyota Ed Nov 03, 2008

    Thnaks for the Premium FixYa . Much Appreciated.



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First, does the engine crank when you attempt to engage the starter? If it does, the problem is one of the following: fuel, ignition or compression. You just have to narrow it down. You can use a little starter fluid to see if it's related to fuel. You can pull a plug wire and connect it to a spare plug then lay the plug on a solid piece of the engine to see if you have an ignition problem. You can run a simple compression test to verify that you have compression. Once you get it narrowed down, find out why that part is failing. 
or Changed the ignition?? The key tumbler? The switch itself? The parts under the hood? IF the key, was the part in the column in good condition. Did the key assembly seat properly? If the switch itself, it is adjustable to a degree and may not be in the right place. Under the hood? 

or if probably out of gas it will not start.
or  still the problem It is recommended to install a new grounded circuit for point of use service where required..

If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator to insure the circuit is, in fact, de-energized.

thanks.

Posted on Oct 31, 2008

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  • 449 Answers

Hi!!!!
try to check the red wire!!!



Posted on Oct 31, 2008

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  • Master
  • 6,966 Answers

Hi,

A couple of ideas to start with:

  • clogged/stuck injectors (most likely);
  • stale fuel in the lines, high pressure pump (likely);
  • vacuum leak (least likely)
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Oct 31, 2008

  • Louie  Role
    Louie Role Oct 31, 2008

    Hi again,

    To my understanding, the electrical system on most (but not all) injectors would be:


    • one would always be hot (that is with IGN ON, would have a B+12 reading);

    • the other would be pulsating when engine is cranked or running;

    • the pulsating is the one connected to the ECU/ECM (computer).
    However, there are instances where the opposite holds true:


    • one wire is grounded;

    • while the other is getting pulsing +12 IGN B+ when engine is cranked or running.

  • Louie  Role
    Louie Role Oct 31, 2008

    Hi again,

    I am assuming that you are using a tester (VOM or DVM), you need to check the continuity of the red wire. Please try:


    • remove at least one of the battery terminal. Do keep in mind that some car/stereo security would require a code or passkey when the battery is removed;

    • set the DVM or VOM to X1 for resistance check;

    • test the red wire (while still connected);

    • if the reading is very low (0), then it is grounded;

    • if the reading is very high or none at all, then there is an open circuit somewhere, probably a fuse;

    • if anything in between, pls post back the value.


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Check to see if there's an update to the PROM for the computer. They did an update for my '93 to keep the lockup torque converter from locking up at very low speed (47-50) and that doesn't transmit the normal engine roughness to the chassis as it did before.

Clean the passages in the EGR (but that should throw a code)...

Posted on Oct 31, 2008

  • Legin Varghese
    Legin Varghese Oct 31, 2008

    Check the battery ground at the floor pan under
    back seat. Loosen and retighten to be sure it's got a bright metal
    ground. Check fuses to be sure they are well-seated in fuse blocks
    under rear seat and under hood.


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  • 62 Answers

Have you drained the gas and put fresh in since it has been stored?

Posted on Oct 31, 2008

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  • Pontiac Master
  • 60,867 Answers

You need to verify the fuel pressure in PSI, to do this hook a fuel pressure tester up to the injector fuel rail test port, also buy a tool called a noid (funny name huh?) tester, it plugs into the connector to the individual injectors, if the PCM signal is ok to the injectors the Noid will quickly flash, any good full service parts store has this tool, about $3-5. Also spark is delivered at the correct time, find top dead center, rool the engine back hook up a spark tester and crank the engine and observe the spark occurs as mark goes by the TDC mark on crank pulley, I suspect you have dried out fuel clogging the injectors, or some other fuel residue related issue.

Posted on Oct 31, 2008

  • 5 more comments 
  • yadayada
    yadayada Oct 31, 2008

    One last comment, if it runs with starting fluid then a wiring problem is not the issue.

  • yadayada
    yadayada Oct 31, 2008

    Hell you haven't had time to do these tests, I repaired these kinds of problems for 20 years, do the tests or don't waste our time.

  • yadayada
    yadayada Oct 31, 2008

    PS you are doing something wrong any 2 year dealer tech could the problem in a hour

  • yadayada
    yadayada Oct 31, 2008

    As a matter of fact request a refund, save us all a great deal of trouble.

  • yadayada
    yadayada Oct 31, 2008

    You are missing something, do the tests again, based on your record so far why not take it to the dealer and stop throwing parts at it. I would still request a refund on this session, I think you are to frustrated to really accept any opinion but your own, best of luck, this is my last word on this car, based on you willingness to try what is suggested.

  • yadayada
    yadayada Oct 31, 2008

    I am no kid, wish I was moron

  • yadayada
    yadayada Nov 01, 2008


    Toyota Ed I read his notes and I understand he did a noid test and the results were no problem with injector pulse, I am unfamiliar with ground issue to ECM but will make a note in the future, got a little heated, want to help this guy but he reads and rejects within minutes of the reply post, felt like I was wasting my time. Anyway thanks for providing what may be the correct solution.

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