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i have a 1995 olds achieva with a quad 4 it has fire when ...
Sent to Car Experts March 31 03:16 PM

i have a 1995 olds achieva with a quad 4 it has fire when key is turned on but not when car is turning over

 

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1995 Oldsmobile achieva 2.4

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Status:  Closed   Value: $10
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April 2 6:01 PM (2 days and 2 hours later)
         
Relist: No answer yet.
1995 olds achieva has spark when key is turned on but not when turning over this must have u guys stumped huh
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April 2 7:02 PM (1 hour and 36 seconds later)
         
ACCEPTEDCheck Mark
Hello,

If you are sure this has a Quad 4, then it should be a 1996 because all listings for a 1995 is a 2.3L. So if it is a 2.4L, let's move on. Just don't want to mix up my info to you. You can have a shorted or open ignition switch. Here is the test.


1. Check for power, red and pink, and ground, black, to the ignition module when cranking.

2. If the power wire is below 9.5 volts, check voltage in and out of the ignition switch when in the crank position.

3. If there is good power in on the Red wires but low out on the Pink wire, replace the ignition switch.

If tests show good, you either have a bad crank sensor or module. But ignition switches are common for failures creating no spark on crank. Let me know.
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April 3 6:17 PM (23 hours and 15 minutes and 18 seconds later)
         
Reply to Brian9's Post: let me tell u more what the car does it may b a 2.3 but the cover says 2.4 ok when u turn the key to the on position the fuel pump relay starts clicking and fuel pump will run and not shut off i replaced the relay twice now didnt fix problem i replaced fuel pump didnt fix it and when i have the spark plug cover turned over and stick a screwdriver on every prong there is a slight spaark off each prong everytime the relay clicks
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April 3 6:34 PM (16 minutes and 44 seconds later)
         
REPLIEDCheck Mark
Hello,

Did you check voltages to the ignition module while cranking. It is the part that you have to unplug to remove the spark plug cover. It is important voltage is here. If no or low voltage, it will give you no spark and fuel while cranking. The ignition switch maybe shorted causing the quick spark when you turn the key to on. But knowing the voltages on crank will lead us where to go from there. Let me know.
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April 3 6:36 PM (2 minutes and 4 seconds later)
         
Reply to Brian9's Post: it is a 2.3 liter motor
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April 3 6:37 PM (1 minute later)
         
i changer the module
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April 3 6:44 PM (7 minutes and 16 seconds later)
         
and the ingition module gets very hot when key is left on
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April 3 6:49 PM (5 minutes and 18 seconds later)
         
Do you have any codes in the computer?
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April 3 6:54 PM (4 minutes and 30 seconds later)
         
how do i check for codes if it isnt running iam not sure how to do that is there anyway i could call you i will pay you for sure but iam sure your probly not allowed to do that cause u might not get paid so then i do i check codes?
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April 3 7:03 PM (8 minutes and 45 seconds later)
         
REPLIEDCheck Mark
Hello,

Can't do phone calls. Sorry. But we can figure this out soon. Just hang in there. There is a data link connector under the dash on the driver side. As you can see in the picture, I want you to use a jumper wire and connect pins A and B. Turn key to on position and watch for the check engine light to flash. It will be a 2 digit code. There will be a pause between digits. Just watch to see if more codes appear after the first code.

Images available only to Customers.

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April 3 7:04 PM (1 minute and 50 seconds later)
         
Reply to Brian9's Post: ok ill go do that ill b right back
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April 3 7:19 PM (14 minutes and 56 seconds later)
         
ok i tryed it and the service engine light did nothing but flickered real fast because of the relay it doesnt show any codes also the light in the shifter will flicker and if u hit the relay to try to get it to stop the tach and the mph gage move up and down i tryed unpluging the relay and getting the codes and still it just stays lite up there r only three wires in that data link of mine
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April 3 7:27 PM (7 minutes and 29 seconds later)
         
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April 3 7:29 PM (2 minutes and 40 seconds later)
         
yes i have a multi meter and i changed the computer as well
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April 3 7:35 PM (5 minutes and 49 seconds later)
         
Well then, we have a power or ground issue. What have you changed over all for starters?
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April 3 7:37 PM (1 minute and 31 seconds later)
         
fuel pump all the relays on the right side by the firewall the computer the ingition module the coils
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April 3 7:43 PM (5 minutes and 40 seconds later)
         
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April 3 7:48 PM (5 minutes and 32 seconds later)
         
it reads .632 i put it on the solid purple wire and the solid yellow wire
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April 3 7:54 PM (6 minutes and 2 seconds later)
         
What does it read on the AC setting while cranking on the 2 wires?
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April 3 7:57 PM (2 minutes and 30 seconds later)
         
it jumps from 331.0 to 226.5 it varys never steady
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April 3 8:07 PM (9 minutes and 57 seconds later)
         
i also changed crank sensor i forgot sorry
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April 3 8:14 PM (7 minutes and 26 seconds later)
         
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April 3 8:21 PM (7 minutes and 4 seconds later)
         
where r these grounds at r u talking about the computer plugs my meter wont reach from battery to the insede of the car
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April 3 8:30 PM (9 minutes and 19 seconds later)
         
ok all those grounds read zero
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April 3 8:32 PM (1 minute and 9 seconds later)
         
i grounded the black to car body is that ok or does it have to go to the battery
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April 3 8:32 PM (17 seconds later)
         
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April 3 8:39 PM (7 minutes and 14 seconds later)
         
ok i hooked it to battery and still zero readings
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April 3 8:50 PM (1 minute and 49 seconds later)
         
ok iam hangin in i just hope you can hang in there as well iam going to check now
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April 3 8:54 PM (4 minutes and 8 seconds later)
         
ok all reading show zero when cranking
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April 3 9:06 PM (12 minutes and 5 seconds later)
         
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April 3 9:10 PM (3 minutes and 21 seconds later)
         
i checked the last ones on ac volts should i of tryed dc on that check
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April 3 9:15 PM (4 minutes and 59 seconds later)
         
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April 3 9:19 PM (4 minutes and 34 seconds later)
         
ok on dc with key on all was 2.550 to 2.755
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April 3 9:30 PM (10 minutes and 25 seconds later)
         
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April 3 9:32 PM (2 minutes and 39 seconds later)
         
ok will do iam calling it a night so i hope u will b on tomorrow 4 am comes early thanks alot and when i get this running i will make it worth your wild
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April 3 9:37 PM (4 minutes and 28 seconds later)
         
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April 3 9:53 PM (16 minutes and 43 seconds later)
         
ok sounds good will do
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April 4 5:05 PM (19 hours and 11 minutes and 12 seconds later)
         
hello ok i hooked a ground up to all three grounds u told me to. everyone i ground makes the relay stop and the fuel pump work right and all lights stop flashing so that fixed that but car still doesnt start i tryed to retreve the computer codes again and it does nothing still were getting closer but need to know what steps to take next i have spark but it is very weak
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April 4 10:57 PM (5 hours and 52 minutes and 10 seconds later)
         
REPLIEDCheck Mark
Hello,

So it is definatly a ground problem. Just need to make sure that a new ground is added to each ground wire. If you cut the wires and didn't add the ground to the ground wires going away from the computer, you have other outputs that need ground too that are still getting a voltage drop. Use a good splice with solder and heat shrink if possible to make the best connection from a good ground to the ground wires. Check for the voltage drop again key on with computer plugged in and unplugged. Let me know what the readings are now. Then try codes again. We may need to to a voltage drop on the power and ignition power wires as well. But lets get the ground verified. Now on the ground, if no voltage drop is present when unplugged but there is a voltage drop plugged in with key on, the micro processor is creating the drop in the computer and will have to be returned for an exchange. Rememner any thing above 0.500 volts is bad. Had same problem once. I have class tomorrow too. Asked my instructor about your car and he agrees with how we are approaching this. Glad to see some results. Let me know.

Edited by Brian9 on April 4 2007 at 11:01 PM
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April 6 4:36 PM (1 day and 17 hours later)
         
Reply to Brian9's Post: ok i will do that ill let you know thanks alot
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April 6 5:58 PM (1 hour and 22 minutes and 13 seconds later)
         
ok all ground with key on and mter on dc volts read 103.5 to 1o4.9 when turning over they read 230.9
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April 6 6:11 PM (12 minutes and 19 seconds later)
         
REPLIED to Info RequestCheck Mark
Does it say MV on the side of the digits when cranking? Like 230.9 mv
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April 6 6:47 PM (35 minutes and 46 seconds later)
         
Reply to Brian9's Post: yes it does
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April 6 7:11 PM (3 minutes and 54 seconds later)
         
i have a very weak spark and no way of checking the fuel injectors and no it wont bring up codes yet i put other computer back in it and still everything is the same
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April 6 7:16 PM (5 minutes and 8 seconds later)
         
i have a very weak spark and no way of checking the fuel injectors and no it wont bring up codes yet i put other computer back in it and still everything is the same
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April 6 7:26 PM (9 minutes and 51 seconds later)
         
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April 6 7:34 PM (8 minutes and 5 seconds later)
         
ok u already had me hook a ground to pa1 so ill go do the other ones right now ill let u know how do i do the drop test with the negitive to the positive of the battery
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April 6 7:38 PM (3 minutes and 58 seconds later)
         
keep meter on dc?
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April 6 7:51 PM (10 minutes and 30 seconds later)
         
pa5 has 15.92 and bd16 has 15.71 volts
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April 6 7:52 PM (1 minute and 29 seconds later)
         
what do u wnt me to do a drop test on i love a challenge as well but iam no good at electrical at all glad u r
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April 6 7:54 PM (1 minute and 46 seconds later)
         
What about the 5 volt wires?
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April 6 7:56 PM (2 minutes and 11 seconds later)
         
i havent hooked the negative to the pos yet what wires do u want me to do a drop check on?
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April 6 8:00 PM (3 minutes and 39 seconds later)
         
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April 6 8:02 PM (1 minute and 47 seconds later)
         
OK IAM SORRY I DID A DROP CHECK ON PA5 AND ITS -19.6 AND BD16 IS -259.0 SO WHAT DO I CHECK FOR THE 5 VOLTS HOPE IAM NOT CONFUSIN U
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April 6 8:05 PM (3 minutes and 14 seconds later)
         
ok pa 3 and pa 4 are 5.10 volts
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April 6 8:07 PM (2 minutes and 33 seconds later)