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Brave Sir Robin
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Coupe' de Tat Offline
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Post: #51
RE: Brave Sir Robin
(08-31-2010 02:38 PM)timetrialman59 Wrote:  Sunday let me know in pm with your address, was by once a couple years ago, so let me know, tj

you r a spaz
09-07-2010 02:15 PM
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WolfDK Offline
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Post: #52
RE: Brave Sir Robin
Did you solve the no start issue ? Smile

- Enough boost is a fine balance between fun and flying parts
09-07-2010 03:59 PM
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Coupe' de Tat Offline
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Post: #53
RE: Brave Sir Robin
just got some test leads for the meter last night, and hunting for my test light. i'm still kind of pissed off, so i'm not exactly eager to even see or look at it right this second. i am also buying some rather expensive new/spare relays, ouch.
09-08-2010 10:41 AM
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Coupe' de Tat Offline
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Post: #54
RE: Brave Sir Robin
handy printed schmatics are handy. initial testlight mini-session sees good voltage hitting the battery side of the fusebox and confirms the previous dmm readings.

the wiring on that relay looks tired, the connectors are the wrong gauge, and was taped up such to suggest it works if held together tightly. the no-crank condition started when i untaped this, so it makes sense to start here. rather than just redoing the already-failed-twice bad placement splice-in, i have a nice socket to install and move the relay over to the inner fender.

at the battery side i am taking apart and redoing the positive terminal, just in case one of the dozen or so feeds has pulled back out of the terminal housing. to prevent this i will load the clamp with a slice of copper taken from some tubing, an anvil to clamp down on the wires solidly.

once i am satisfied with the relay's wiring and supplied power, i will then play human pretzel under the dash and troubleshoot these issues further.Huh
09-15-2010 12:55 PM
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Shifted Offline
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Post: #55
RE: Brave Sir Robin
Just a post of encouragement, dealing with previous cobbles and failures drives me bananas too, wish you lived a little closer...

May you soon see the light at the end of the tunnel.
09-15-2010 07:40 PM
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Coupe' de Tat Offline
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Post: #56
RE: Brave Sir Robin
thanks, i need it to continue, basically.
(This post was last modified: 06-03-2011 10:53 AM by Coupe' de Tat.)
09-16-2010 10:07 PM
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Coupe' de Tat Offline
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Post: #57
RE: Brave Sir Robin
the odd relay has been socketed, cranking restored! yeehaw, /tingertwirl.
(This post was last modified: 06-03-2011 10:53 AM by Coupe' de Tat.)
09-20-2010 08:37 PM
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Shifted Offline
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Post: #58
RE: Brave Sir Robin
I'd confirm actual voltage/lack thereof at main pump, with dvm or test light, just to be sure.
09-21-2010 05:04 AM
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Coupe' de Tat Offline
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Post: #59
RE: Brave Sir Robin
"hey, how about one more meal before we go back to sleep in these here cryochambers, i'm hungry." Wink
(This post was last modified: 06-03-2011 10:54 AM by Coupe' de Tat.)
09-21-2010 10:33 AM
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miguel.760ti Offline
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Post: #60
RE: Brave Sir Robin
Do you have 2.2 or 2.4?

If it's 2.2 you can cycle the key between positions I and II and have someone listen and see if the pumps come on.

Or you can switch the contacts by hand as the excerpt from your post says.

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09-21-2010 08:37 PM
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WolfDK Offline
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Post: #61
RE: Brave Sir Robin
(09-21-2010 08:37 PM)miguel.760ti Wrote:  Do you have 2.2 or 2.4?

If it's 2.2 you can cycle the key between positions I and II and have someone listen and see if the pumps come on.

Or you can switch the contacts by hand as the excerpt from your post says.

Same thing goes for LH 2.4, fuelpump will run briefly upon energizing the ECU (its a fuel prime function).

Edit: My B234F startup, listen for fuelpump (LH 2.4)

- Enough boost is a fine balance between fun and flying parts
(This post was last modified: 09-22-2010 03:06 AM by WolfDK.)
09-22-2010 02:57 AM
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Coupe' de Tat Offline
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Post: #62
RE: Brave Sir Robin
so if no prime @ kp2, then where do i start looking? ECU? i will be picking at it some more today.

as stated before, car is LH2.2
09-23-2010 03:21 PM
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WolfDK Offline
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Post: #63
RE: Brave Sir Robin
(09-23-2010 03:21 PM)Coupe' de Tat Wrote:  so if no prime @ kp2, then where do i start looking? ECU? i will be picking at it some more today.

as stated before, car is LH2.2

Faulty overboost switch or faulty wiring leading to it, or faulty fuelpump relay. To test disconnect multiplug from ECU, and ground pin 21 in the plug (powers main relay). Then also ground pin 17 (powers fuelpump relay), if fuelpump runs i would HIGHLY suspect ECU, if not, wiring and overboost switch are suspects.

Fuelpump is activated by the following chains :

Chain 1 : ECU -> Main relay (Fuelpump and main relay are integrated into same housing)

Chain 2 : ECU -> overboost safety switch -> fuelpump relay -> Main and intank fuelpumps

Hope this helps Smile

- Enough boost is a fine balance between fun and flying parts
(This post was last modified: 09-23-2010 08:48 PM by WolfDK.)
09-23-2010 08:47 PM
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Coupe' de Tat Offline
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Post: #64
RE: Brave Sir Robin
shit. now i don't even want to find out.
i guess it's because i just got done spending a pile of money on everything. the last thing i want to do is have to locate and buy ECU ICU ect., fuck. this is getting tiresome.
(This post was last modified: 09-24-2010 12:23 AM by Coupe' de Tat.)
09-23-2010 11:44 PM
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WolfDK Offline
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Post: #65
RE: Brave Sir Robin
I don't think your ECU is toast they rarely go bad, but this way you can track down your fault.

- Enough boost is a fine balance between fun and flying parts
09-24-2010 05:43 AM
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WindowsBreakerG4 Offline
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Post: #66
RE: Brave Sir Robin
FWIW my 2.2 fuel pump doesn't prime when you turn the car on. Never has.

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09-24-2010 01:18 PM
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WolfDK Offline
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Post: #67
RE: Brave Sir Robin
Then the solution is simple, do nothing Smile

- Enough boost is a fine balance between fun and flying parts
09-24-2010 01:24 PM
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Coupe' de Tat Offline
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Post: #68
RE: Brave Sir Robin
brought over from 6lbs
(09-24-2010 01:26 PM)Coupe' de Tat Wrote:  hearing i might need a ECU makes me want to drink, enough that i could piss on it with a lighter in front of my dick and light it on fire

(09-24-2010 01:35 PM)WolfDK Wrote:  You don't need a ECU, someone told that LH 2.2 would prime at power up, now WBG4 say his don't. I guess LH 2.2 don't prime and thats why yours also don't, short story it seems to work as intended.
great, so which is it? hearing that i might have been chasing a ghost isn't exactly making me any happier or more eager to run right out and hack at it some more.
(09-24-2010 01:35 PM)WolfDK Wrote:  Then the solution is simple, do nothing
no longer an option, the calendar is now again in play. i will see what pans out over the next few days with my help request. and if the teebeezers think they can starve me out and subsequently get at the parts, they'd better guess again.
09-24-2010 02:14 PM
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WolfDK Offline
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Post: #69
RE: Brave Sir Robin
I try to help the best i can, i have no LH 2.2 Volvo available to verify if fuelpump primes or not. It would make sense if it did, as the priming function is meant to get rid of eventual air in the system, and also to pressurize the system. Priming is not meant to inject fuel into the engine for start, this usually first happens when you turn the key to KP3 (start). If it does not prime but fuelpump runs while cranking, the engine still should startup.

So to get you further down the road, verify fuelpump operation while cranking and forget about priming, at least for now.

(If no one can verify prime operation on LH 2.2, i have a LH 2.2 SAAB engine i need to get wired for startup, when thats done i can tell you firsthand if LH 2.2 primes at KP1->KP2 or not.)

- Enough boost is a fine balance between fun and flying parts
09-24-2010 04:19 PM
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Coupe' de Tat Offline
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Post: #70
RE: Brave Sir Robin
dig in tomorrow morning, sigh.
09-24-2010 06:43 PM
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WolfDK Offline
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Post: #71
RE: Brave Sir Robin
Here is a little something to help you digging, BLUE paths are B+, GREEN path are main relay trigger power, YELLOW paths are fuelpump power paths (fp relay trigger and fp power). It should also help you see where my mind was going in my previous posts.

Click image to enlarge
   

Cheer up and get sh*t done, you are getting there Smile

We want a vid when it fires up Wink

- Enough boost is a fine balance between fun and flying parts
(This post was last modified: 09-24-2010 08:15 PM by WolfDK.)
09-24-2010 08:14 PM
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Coupe' de Tat Offline
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Post: #72
RE: Brave Sir Robin
thanks again, these are awesome. if it weren't for the prior drawings i wouldn't have been able to get it cranking.

i know i can do it, i just don't have 3 months to figure it all out like all the prior crap. this car has drained every last dime i can spend (for now), even took what i had set aside for paint prep.

maybe then i can capture video of the alien in the air duct, i have that to look forward to when this is done.
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09-24-2010 09:09 PM
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miguel.760ti Offline
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Post: #73
RE: Brave Sir Robin
2.2 doesn't prime when you put the key in KPII

As I stated before you can either close the FP relay contacts by hand or cycle the key between positions I and II to trigger the pump.

'88 760ti - Rattley k-car
'89 240dl - Non-running 240 #3 in krisverde's shop
09-25-2010 06:51 PM
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WolfDK Offline
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Post: #74
RE: Brave Sir Robin
(09-25-2010 06:51 PM)miguel.760ti Wrote:  2.2 doesn't prime when you put the key in KPII

As I stated before you can either close the FP relay contacts by hand or cycle the key between positions I and II to trigger the pump.

Thats the priming function, fuelpump activates for ~2-3 secs upon energizing the ECU, LH 2.4 behaves the same way. Priming does not mean that the fuelpump is constant on, its only on constantly when the engine is cranking or running. If you stall the engine in KP2, the fuelpump turns off after a few secs, thats a safety feature build into the ECU.

I was in doubt if LH 2.2 did behave like LH 2.4, but you confirmed that they work the same (priming wise) - Thanks for clarifying Big Grin

- Enough boost is a fine balance between fun and flying parts
09-25-2010 07:16 PM
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Coupe' de Tat Offline
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Post: #75
RE: Brave Sir Robin
ok.

kp1>kp2 =/= prime.

kp3 = cranking and fuel pumps running, yay!

test light on -coil blinks while cranking, nice and bright.
09-25-2010 08:11 PM
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