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Nick: what yearmodel is your car? In my -91 there is a throttle position sensor. I doubt it has changed. Just go look at the butterfly housing and you can see it at the radiator side of the throttle axle. I had just the same symptoms, jerking at part throttle, mostly at steady speeds. F7P...

Nick: what yearmodel is your car? In my -91 there is a throttle position sensor. I doubt it has changed. Just go look at the butterfly housing and you can see it at the radiator side of the throttle axle. I had just the same symptoms, jerking at part throttle, mostly at steady speeds. F7P...

You should check your engine faultcodes. My 16v did just the same thing, and faultcodes showed throttle potentiometer to be blamed for. Changing it helped, no more jerking. But it wasnt a cheap one, so you should first check the codes.

You should check your engine faultcodes. My 16v did just the same thing, and faultcodes showed throttle potentiometer to be blamed for. Changing it helped, no more jerking. But it wasnt a cheap one, so you should first check the codes.

Renault 1721cc F-series block was used in Volvo 440, 460 and 480 turbo models. It was designed by Porsche to Volvo. Model in Volvo range is B17FT.

Renault 1721cc F-series block was used in Volvo 440, 460 and 480 turbo models. It was designed by Porsche to Volvo. Model in Volvo range is B17FT.

I dont know if it is larger, but it is different anyway. If willy TB is larger, could 1.8 TB restrict airflow so much it would be no use for willys bigger intake port and better flowing of the head? Or is there flow reserve in 1.8 TB?

Willy has higher lift camshafts too, both inlet and exhaust, but I dont know the duration angles. So I just wondered if that will affect the same as with 1.8 head and performance cams, which means using higher revs. Its hard to say because I dont know the duration. Does anyone know the duration...

Does anyone have Williams head on 1.8 16v? If someone has, could you tell me how did it change the engine? Did low torque reduce and do you have to rev it higher to get it going? And finally, how did you increase fuelling, by increasing fuel pressure or by re-programming the chip? Thanks for...

Heres the gear ratios for JB3-048 (1.8 16v) and JC5-014 (Willy) 16v: 1. 2. 3. 4. 5. final 11/34 19/35 25/33 30/29 39/31 14 x 59 Williams: 1. 2. 3. 4. 5. final 11/34 22/41 28/37 34/35 39/41 15 x 61

Heres the gear ratios for JB3-048 (1.8 16v) and JC5-014 (Willy) 16v: 1. 2. 3. 4. 5. final 11/34 19/35 25/33 30/29 39/31 14 x 59 Williams: 1. 2. 3. 4. 5. final 11/34 22/41 28/37 34/35 39/41 15 x 61

I didnt know that 172 has Renix too, so I thought you were talking about 16v... Thanks anyway Capt!

I didnt know that 172 has Renix too, so I thought you were talking about 16v... Thanks anyway Capt!

Ok, I thought that if you had some files about it in computer which would be easy to send, but if it is on paper or in your head its bit more difficult I would like to know about its working principle and about that diagnostics socket. Fastchip (www.fastchip.nl) sell this info display which...

Ok, I thought that if you had some files about it in computer which would be easy to send, but if it is on paper or in your head its bit more difficult I would like to know about its working principle and about that diagnostics socket. Fastchip (www.fastchip.nl) sell this info display which...

Hello! In some post you mentioned that you have information about the Renault Renix ECU. If it isnt too much trouble, could you please mail me it? As Ive been looking for info from everywhere, but have found nothing useable really... Mail: koivis22@proffa.cc.tut.fi Thanks!

Hello! In some post you mentioned that you have information about the Renault Renix ECU. If it isnt too much trouble, could you please mail me it? As Ive been looking for info from everywhere, but have found nothing useable really... Mail: koivis22@proffa.cc.tut.fi Thanks!