Wolfgang

Hello George, great to hear I am not a the only one with this problem. Yes, we will swap and proof the ECU`s and if necessary install 2 new ECU`s. What makes me still wonder is the fact that the drop outs started 1 months ago at 5.500, 2 weeks later already at 5.000 and another 2 weeks later now at 4.400rpm/s (driven within this 4 weeks 2.000miles) ?! Now I dont drive it any more till its fixed.

@Hazim, you are right about the OT sensor - we have done a useless job. About the ECU`s: Great new idea to swap the connecters and to see if the code went to the other side. My idea was to replace both ECU`s for a test, hope my garage has 2 new in stock just for test drive. They are insane expensive. @13mm, throttle linkage - yes, another great idea and input. I will happy forward all ideas and advices to my garage master. Please keep on! Each thought is highly appreciated and I am very thankful for all your help gents. I`ll have a date in my garage for next week. Hopefully we can fix the beast. Wolfgang

Once again, thank you very much. About the sensor on top of the bell house (flywheel): ---sorry, its very difficult for me to translate technical stuff--- We have changed one more sensor and I want to know if we are talking about the same. We call it OT Geber in german - something like "upper transmitter ". Its located ad the end of the engine, close to the fire wall and than down under ........ very hard to change. Screws are difficult to open - we did it from under the car with a special tool. The sensor looks (in my amateur eyes) like the other two sensors from time & speed But the flywheel is very close to the sensor I remember. Thanks in advance.

Thank you very much. This are the tim & speed sensors?! Yes, we have already changed them. They are close/left from the distributor....still the same problem.

About the ECU I don`t know if he has checked it or how to proof? About the tailpipes: Yes indeed there is a huge difference between the left and right double pipes. The left side is white and the right side is dark red. The car is fitted with the original cats but with a tubi style - so no way to see if the right tailpipes are from the right engine side -who knows whats going on inside the tubi? But anyway, what does it means ?

Thank you very much for the great pic & location description. Yes, this are the 2 sensors we have already replaced and sadly not the problem solved.

Thanks a lot for your very quick reply. I am not the mechanic thats why I have to ask you: Are this the 2 sensors mounted on top of the engine between the 2 cylinder heads (blue pins if I remember right and easy to change cause they are on top of and between the heads)? If yes, we have already changed them and still the same problem. If not, I ll tell my mechanic asap to replace them. Wolfgang

Hello, I am new to the board and first In want to introduce myself. I`m living in Heidelberg / Germany, 47 years (young) and after a 308 GTSi QV and a Testarossa I was ready to buy my first Lambo. A 1994 Diablo VT in deep black. I am very happy with my new toy and do not regret the change to the dark side;) But, from the first day on I have a problem that even my top mechanic master can not solve. May I ask you for help? Any advice would be highly appreciated. Ignition Drop Outs! It started with drop outs at around 5.500 rpm/s (each gear) Can`t go over 5.500 rpm/s it drop down under 5.000. Till 5.500 the engine is running perfect without any doubts. When the engine is COLD, it does not happen but just after a few miles and a little warm up the problem shows of. Check Engine L is flashing Drop outs Check engine L & R is flashing. After a while and under 5.000 the Check Engine flash is gone. We checked the error indicator with the key check. Check Engine flashes 6 times – on the list error number: 6 “Engine speed & timing sensor signal wrong sequence” What we have already done and changed: - Both time & speed sensors, new - Both ignition coils, new - 12 new plugs - the complete ignition cables (plug leads?), new - checked all fuses - both air temp. sensors changed, new - OT Geber changed, new (upper transmitter between engine and gear box very difficult action) After each repair we did a test drive. Car run up to 7.500rpm`s without a problem but after 5 miles same problem again. (NO, I usual never run my car on high rpm`s when its cold – just to proof the situation). Now, the problem is getting more and more curious. Ignition drop outs started at 5.000rpm`s and a few days later at 4.400rpm`s. Is my Diablo dying slowy……? Andy ideas, thoughts, help? Thanks in advance Yours Wolfgang P.S. sorry for my poor english, its my second language and hard to describe technical things in english.