No Start issue
#1
Rennlist Member
Thread Starter
No Start issue
We have a 1987 951. The car has the mtune and was running fine. Lately, the car was popping out the exhaust. It stalled a few times, but restarted. I changed the plugs and it still ran rough. I took it out and got on it a bit and it popped then stalled, now no start. Belt looks fine, checked the DME, bypassed it and still no start. I am thinking a relay or sensor may have failed.
Any ideas or comments?
Any ideas or comments?
Last edited by Stephencs601; 02-29-2016 at 12:12 PM.
#2
Addict
Rennlist Member
Rennlist Member
Do you get "tach bounce" while cranking it? Like 1/8th of an inch of bounce of the tach for each crank. If that isn't happening, and the needle isn't moving during cranking, then your speed / reference sensors may be failing.
http://www.clarks-garage.com/shop-manual/ign-02.htm
http://www.clarks-garage.com/shop-manual/ign-02.htm
#6
Professional Hoon
Rennlist Member
Rennlist Member
Join Date: Jan 2010
Location: Melbourne, Australia
Posts: 7,090
Likes: 0
Received 4 Likes
on
4 Posts
wiggle the speed and reference sensors wires and plugs and see if that makes a difference. it's not necessary the sensors, most of the time, it's the loom for the sensors.
#7
Yeah, those connectors on the bracket in back of intake need to be wiggled to start sometimes on my 951. There is a kit to replace these connectors on eBay right now I was going to purchase. Housings and pins though you can also replace sensors and get the wire kit to the ecu.