JUST FITTED A COILPACK CONVERSION TO MY 3DR.
EVERYTHING IS FINE EXCEPT THE REV COUNTER.
TOOK MY CLOCKS TO MOTOR SPORT DEVELOPMENTS ON SAT.TO HAVE A MOD DONE TO MY CLOCKS AND ALSO TO HAVE THE DRIVER BOARD FITTED TO MY ECU.FITTED THEM YESTERDAY AND REV COUNTER COMES ALIVE WHEN STARTED AND SITS AT 800 R.P.M. BUT IF YOU REV THE CAR IT JUST STAYS THERE[800 R.P.M.
TOOK MY CLOCKS AND REV COUNTER APART BUT COULD NOT SEE ANY MOD [BRIDGING WIRE AT ALL.
PLEASE COULD ANYONE WHO HAS DONE THIS CONVERSION PLEASE POINT ME IN THE RIGHT DIRECTION AS I AM GUTTED.CHEERS MARK

 

I'd suggest phoneing motorsport developments

 

DID CALL MOTORSPORT DEVELOPMENTS TODAY AND SPOKE TO KENNY WHO DID THE CONVERSION TO MY CLOCKS.HE DID NOT HAVE ANY ANSWER FOR ME.WOULD LIKE TO SPEAK TO STU .IF YOU READ THIS PLEASE REPLY

 

PLEASE.PLEASE HELP.
FITTED COILPACK CONVERSION EVERYTHING OK BUT REV COUNTER WILL NOT MOVE[STAYS AT 800 RPM EVEN WHEN REVING.SWITCH OFF AND GOES BACK TO ZERO.
HAD CONVERSION DONE TO REV COUNTER STILL NO JOY.
SPOPKE TO STU AT MOTORSPORT DEVELOPMENTS BUT COULD NOT HELP ME AS I ONLY BOUGHT AND HAD DRIVER AND CLOCKS DONE BY THEM[BOUGHT OTHER STUFF FROM MATT LEWIS MOTORSPORT].
SOMEONE MUST HAVE HAD THIS HAPPEN WHEN FITTING A COILPACK CONVERSION.PLEASE.PLEASE HELP I AM GUTTED THAT IT DOES NOT WORK.CHEERS MARK

 

Have you connected up the green wire that used to go to the coil, to the pin 1 on the ign amp??


What exactly have you done so far??

 

HERES WHAT I HAVE DONE.
DISCONECTED OLD COIL FROM CAR[COIL LEAD,POSITIVE CONNECTION,NEGATIVE CONNECTION ALSO ONE OF THE WIRES HAD A SMALL BOX THAT WAS ATTACHED TO THE COIL BRACKET REMOVED THIS AS IT CONNECTED TO ONE OF THE LEADS WITH A ORIGINAL CONNECTOR.TAPED UP WHAT WAS LEFT 2 LEADS THAT WENT TO POSITIVE AND NEGATIVE ON COIL.THERE IS A SMALL GREEN WIRE WITH AN ORIGINAL BULLET CONNECTOR JOINING THEM TOGETHER THIS LOOKS STANDARD,IF I UNPLUG THIS THEN THE TACH DIES THIS HAS ALWAYS BEEN CONNECTED.PLEASE HELP.CHEERS MARK 0191 5840361

 

what coil pack conversion loom have you used ? Is there a wire going into pin 21 of the ECU connector (commonly called the hairbrush) ?

 

yes i have the correct coilpack loom[brand new] it does have 2x wires that go into the ecu pin 26 and pin 21 .i thought it was a plug and play after you had the driver fitted by motorsport developments and also the mod to the rev counter.took my clocks to bits.cut the link wire that they had installed and it made the rev counter go off so i soldered it back on where it should be.

 

How about trying a different set of clocks - even if from a boggo sierra (without the wiring mod and then with) ?

Other than that, I'd say you'll have to get back on to MSD, even if it's just to confirm that the output to the rev counter from the board fitted to your ECU was tested after it was fitted.

 

If you cant sort this, give me a call anytime on SUNDAY after 10am as I
am on my way out right now.

SIMON 07974030591

 

Nice one Simon - hope you can sort him out

 

JUST BOUGHT ANOTHER SET OF CLOCKS FOR MY 3DR.TO TRY AND RECTIFY THIS PROBLEM.FITTED THE CLOCKS AND THE REV COUNTER SEEMED FINE BUT ONLY SEEMED TO BE READING HALF THE REVS OF THE ENGINE SPEED. COPIED THE MOD THAT MOTORSPORT DEVELOPMENTS DID TO MY ORIGINAL CLOCKS AND THE SAME THING HAPPENED [REV COUNTER WAS BOUNCING FROM 3000-7000 RPM]SO I SHUT IT OFF INSTANTLY.TOOK OFF THE LINK WIRE AND REFITTED.EVERYTHING WORKS GREAT BUT THE REV COUNTER SEEMS TO BE SHOWING HALF THE REVS THAT IT SHOULD BE JUST AS IT WAS BEFORE.
MY ORIGINAL CLOCKS ONLY STAY AT 800 RPM ALL OF THE TIME EVEN WHEN REVING THEY WOULD ONLY GO TO ZERO WHEN I SWITCH OFF THE ENGINE.
SO I GUESS THEY ARE GOOSED AFTER HAVING THE MOD DONE BY MOTORSPORT DEVELOPMENTS.I AM SO OUT OF POCKET ON THIS AND QUITE UPSET THAT I HAD A PERFECT SET OF CLOCKS RUINED.
CAN ANY BODY SHED SOME LIGHT AS TO HOW I GET MY 2ND SET OF CLOCKS SHOWING THE CORRECT RPMs AS LIKE I SAID THEY SEEM TO BE ONLY SHOWING HALF ENGINE SPEED.PLEASE EMAIL ME OR YOU CAN CALL ME ON 0191 5840361 IF YOU HAVE HAD THIS PROBLEM AND REMIDIED IT.CHEERS MARK

 

YES!!




They will only show half the revs until they are modded. Don't know whats up with the first set of clocks then!!


Just ring simon tomorrow

 

WILL CALL SIMON IN MORNING
THERE WAS NOTHING WRONG WITH MY OLD CLOCKS PRIOR TO THE MOD.
THEY DID THE SAME AS MY NEW CLOCKS[REVING FROM 3000-7000]BUT I LEFT THE ENGINE RUNNING FOR ABOUT 10 MINS AND THIS PROBABLY FRIID THE RESISTOR THAT THEY HAD BRIDGED WITH A WIRE.

 

I was going to have this conversion done on mine but was put off after speaking to stu @msd, he told me that this is a common problem with 3drs with this conversion and that it might happen. He didn't know what was causing the problem so i decided against having it done.

 

SECS
HI SIMON,
ITS MARK WITH THE REV COUNTER PROBLEM AFTER FITTING A COILPACK CONVERSION TO MY CAR.
YOU PLACED A POST FOR ME TO CALL YOU AFTER 10AM ON SUNDAY I HAVE TRIED AND ALSO LEFT A FEW MESSAGES.HOPE YOU ARE ALRIGHT.
JON@WORK ONE OF THE OTHER PEOPLE ON THE FORUM HAS BEEN IN TOUCH WITH ME HE SEEMS TO KNOW YOU AND HE SAID THAT YOU WERE THE GUY TO HELP POINT ME IN THE RIGHT DIRECTION HOW TO FIX THIS AS HE SAID THAT YOU DESIGNED IT.
ANYWAY MY CAR REVCOUNTER IS SHOWING HALF OF THE REAL ENGINE REVS.
IF POSS COULD YOU PLEASE LET ME KNOW A GOOD TIME TO CALL YOU SO I CAN TALK TO YOU TO GET SOME POINTERS.HOPE YOU ARE OK.CHEERS MARK.
MY EMAIL IS MARK@MARK8057.WANADOO.CO.UK AND MY HOME TEL. NUMBER IS 0191 5840361.AND I WILL BEHOME AFTER 6 PM ALL WEEK.HOPE TO HEAR FROM YOU SOON.CHEERS MARK

 

Hi,
I dont believe we didnt have any answers for you at all. I suggested you send the ecu back for us to check over if you were confident the loom you used is working correctly. Also, your rev counter is NOT dead after being worked on by motorsport developments as you suggested at all. Reading half is EXACTLY what you would expect to happen when you convert to wasted spark, this has NOTHING to do with the clocks themselves, its to do with the signal output being halved which is fixed by pin 21 on teh loom being connected to our tach driver. Well, at least it is on the loom that WE sell.

The loom was NOT purchased from us so its impossible for me to help you with the wiring aspect although i DID tell you how to check the drive circuit independanly of your loom as i recall advising you to run a fresh and independant wire from ecu pin 21 to the green wire on the back of the tach unit and that would drive the tach properly. Have you done this? What was the result?

I also told you that if you bring me the car i will find and rectify the fault?

Please tell me what more you wanted me to say?

 

That was quite some time ago Steve, we did eventually find a solution for it by modifying the clocks themselves.

 

MY STANDARD CLOCKS WORKED PERFECTLY BEFORE I BROUGHT THEM IN FOR MODIFICATION.
FITTED THE CLOCKS AND THE REV COUNTER JUMPED FROM 3000-7000 AS THE CAR IDLED I LET THE CAR IDLE FOR ABOUT 10 MINS..
SPOKE TO MSD THEY TOLD ME WHERE THE MOD WAS ON CLOCKS AND TO CUT THE LINK AND TRY.I DID AND THE REV COUNTER DID NOTHING SO I SOLDERED BACK THE LINK WIRE TOGETHER NOW THE REV COUNTER WORKS BUT STAYS AT 800 RPM AT ANY ENGINE REVS.
BOUGHT ANOTHER SET OF CLOCKS FROM MY FRIEND DID THE MOD THAT MSD DID TO MY ORIGINAL CLOCKS AND SAME AGAIN COUNTER BOUNCING FROM 3000-7000 SO I QUICKLY REMOVED THE LINK WIRE AND RE FITTED THE NEW CLOCKS.
THE COUNTER SHOWS ABOUT HALF ENGINE REVS.
I DONT KNOW IF THE BRIDGING OF ONE OF THE RESISTORS ON MY ORIGIONAL CLOCKS HAS DONE ANY DAMAGE AS I LET THE CAR IDLE FOR 10 MINS BUT DID DO THE SAME MOD WITH NEW SET BUT REMOVED BRIDGE AFTER 3 OR 4 SECONDS.
IM NOT AFTER ANY THING ALL I WANT IS FOR MY REV COUNTER TO WORK.
I BOUGHT THE COILPACK ,HARNESS[SAME COMPANY IM TOLD THAT SUPPLIES THEM TO MSD]LEADS AND AMPS ALL BRAND NEW.
I OFFERED TO PURCHASE ANOTHER HARNESS FROM STU BUT HE TOLD ME THAT IT WOULD NOT BE THE HARNESS.
DRIVER BOARD AND CLOCK MOD FROM MSD.
IM NOT BAD MOUTHING ANYONE AT ALL JUST WANT TO BE POINTED IN RIGHT DIRECTION.CHEERS MARK

 

Appologies Stu, nice one for sorting it now though. Might have it done in the future now then

 

JUST RAN A SEPERATE WIRE FROM PIN 21 AND CUT THE TACH WIRE AT CLOCKS AND WIRED IT STRAIGHT TO CLOCKS.
EXACTLY THE SAME HALF REVS SO ORIGIONAL WIRE TO CLOCKS IS PERFECT.CHEERS MARK

 

Excellent, so it therefore must be either an issue with teh tach or with the ECU, as i originally told you on the phone. Fire it back and lets just fit a new driver to save any messing about mate.

 

I run 92 sierra clocks in my tina did not need any mod worked fine,why not convert to the later ones,not original but they light up better and work