View Full Version : Crank Sensor Problem?!
HADI-ZR1
07-15-2009, 05:45 AM
After the car was Send to *PRO CZECH MECHANIC :rolleyes: yesterday he told me the crank sensor have no signal ,that why the engine not start! ohh yaa, and before 2 months,he told me when he put new spark plugs ,the engine start! and he left the car since then, till before 2 weeks from now,and he call me,and told me the car again not started and he found the Starter (bearing) Rotor damage! COOL! new starter changed before year, by the way!
(I remeber i told him its impossibe the issue is Spark plug ,and i post it here in forum ).
ok.... lets get in the story, the PRO guy,call me again befor 4 days and said the engine wont start after fixing the starter.WAAW!!
he said my Z made him nervous!! ohh realy, who should be piss off and nervous now??!
Guys, i start to hate this car,and wish to burn it,and finish it! I have no luck with this Z.
last year,i lost my chance and enjoy my holiday and sticking with my brothers in Prague Corvette Gathering, and now again this 2009 gathering 18 July , i will lost it,and have no fun !!!
So any one know where to get Crack Sensor to put end to this tragic story, Maybe if there isnt any other real issue NOT the CS problem.
what do you think is going on? any idea?
the car is 500 Km away from City where i am.
HADI-ZR1
07-15-2009, 01:17 PM
Update:
Anyone have Used (good) Module, Ignition Control, its black box. for 1990 Zr-1 .
as the Mechanic told me, the Crank sensor is OK!
I need the Part to be send as soon as pssible.
If you are sure you have a good one, and SURE you will send it Via Global express Mail to Czech Rep. (it takes 3-4 days)
then let me know. and we will talk about the payment.
If i havent got it, then i have to order New one from Curt.
tccrab
07-15-2009, 01:50 PM
Hadi:
There's one on eBay, Item number: 400061584235
But be prepared for a little surprise, the starting bid is $550.00
:jawdrop:
That being said, it doesn't sound like your "Pro Czech Mechanic" knows his azz from a hole in the ground.
Put the car into a container and ship it to someone who actually knows what they're doing.
TomC
"Crabs"
HADI-ZR1
07-15-2009, 02:02 PM
Hadi:
There's one on eBay, Item number: 400061584235
But be prepared for a little surprise, the starting bid is $550.00
:jawdrop:
That being said, it doesn't sound like your "Pro Czech Mechanic" knows his azz from a hole in the ground.
Put the car into a container and ship it to someone who actually knows what they're doing.
TomC
"Crabs"
Curt sell it for $980 , i just talked to curt today about my issue,maybe he will give me lower price, dont know yet!
Container??
Ohh Tom..., then i have to Ship it to USA the Only place who take care of my Zr1 :cry:
This guy, have Zr1 manual shop, he already fix DIS-4 MSD ignition system before year for my Z.,
I dont know what happend to his Head, maybe VODKA??!
HADI-ZR1
07-18-2009, 12:10 AM
As you see the ignition Module is sticking under the plenum.
So how possible this became wet and damaged by water presuure cleaning?
http://i17.photobucket.com/albums/b79/MRBLU/ZR1plenumliftedevapconnectannotated.jpg
tccrab
07-18-2009, 02:53 AM
Hadi:
:dontknow:
TomC
"Crabs"
HADI-ZR1
07-30-2009, 06:12 AM
Update:
After paying $1000 for DIS modul + shipping from Kurt White, TODAY the mechanic told me that after replacing the modul, the engine did not start!!
wtf?? he check and done the steps on service book, and it says ,the faul may be the ECM , or the DIS modul, so whats to look at more??
i dont think the ECM is faulty, because water spary done only on intake manifold. even Kurt told me there is no way any wrong with ECM!!
:neutral:
Hadi sorry to hear you spent the money.
If i have seen this post earlier i could've saved you the money.
If module goes bad the motor will not rev past 5k RPM.
Pete
tccrab
07-30-2009, 02:39 PM
Hadi:
My advice to you is:
Pay the "Pro Czech" a fair amount for his time and effort, and have the car towed to the ship yards where it can be put into a container and shipped to the US for proper diagnosis and repair.
TomC
"Crabs"
Hadi does the motor crank or do you get nothing when you turn key?
If it don't crank maybe you have the no start issue,it's common on our Z's.
Do a search about it on here.
If it cranks and no start make sure you get feul/spark.
Can you check and make sure the ingition coils are pluged in just remembered i busted my head on that once cause the locking pin didn't lock anymore and it came off with the plenum pull and never noticed it.
Keep the info coming.
Do you have feul presuure?
Do you have spark?
Pete
HADI-ZR1
07-30-2009, 04:53 PM
Hi Pete,
The car crank, but no spark,no fuel!!
the same told me Kurt, he could lose pin in conectors which goes to coil or to DSI, but the mechanic told he checked these thing and seems every thing s fine, BUT who know what the hell he is doing!!
i return home before 4 days, and i havent chance to see my Z after spending 3 weeks there in CZ.
:cry:
ittlfly
07-30-2009, 07:14 PM
Have you checked for any codes? You didn't say. If no codes, then with no fuel delivery and no spark, is there reference pulse (sync pulse) from the crank sensor to the ignition control module? Without that, the ECM doesn't know engine position or engine speed and will not fire the coils and subsequent energize the injectors. That would explain your symptoms. There are other reasons too but you have to start with the basics.
HADI-ZR1
07-30-2009, 07:26 PM
ittlfly,
The guy said that there is signal coming from crank sensor and thing looks ok!
He said also no error code from ECM. Strange!
but i will forward your post to his E-mail,so he check these steps.
thanks anyway.
ittlfly
07-30-2009, 08:16 PM
ittlfly,
The guy said that there is signal coming from crank sensor and thing looks ok!
He said also no error code from ECM. Strange!
but i will forward your post to his E-mail,so he check these steps.
thanks anyway.
Ok...if he is SURE that the reference pulse is present FROM the crank sensor TO Ig. contrl. module, then the next thing to check is the signal TO the ECM. The signal varies from 0-5 V depending on the position of the 9 sloted crank shaft wheel. The upshot is that from the 2 signals, the ign module knows engine postion and the ECM can trigger fuel pulses to the injectors.
HADI-ZR1
07-31-2009, 05:08 AM
What i am sure, he told me there was signal Volt from crank sensor to ign modul, but not sure he mean during cranking,or just during Turn on ignition!
HADI-ZR1
08-16-2009, 04:32 PM
Update:
after ordering the new Ign. module and replaced it with old one, the engine still did not start!
Thanks for Pete he was within to find out the problem NO START during cranking.
I am going to post what i sent PETE, so you share the topic with me.
The Czech Mechanic sent me this info:
fuel pressure its 50psi,but injector no opened,no signal of ECU.
crank sensor terminal A+ C on DIS 990 ohms and crank engine voltage its 0.55V
and for 2 3way conector for coil no signal A and B only C its ground OK."
He send me just now masege saying that the plug connector is in,and its fine! hmm.
PETE you Said that you can run MSD ignition without needing for orginal Ign. module?? is this what you mean?! i need to know.
If i am runing the MSD DIS-4 system, i dont need the orginal ign. module? they are not working in the same time? if i UNpluged the Connector runing from ign. module to coil, with MSD DIS-4 the engine should run?
Let me know this info.
Hadi
4DSZR1
08-16-2009, 06:13 PM
Check the plug coming out of the coil pack that's low and on the back of the block....
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