The 75 and ZT Owners Club Forums - View Single Post - 75 1.8 manual; Surging deceleration and wavering idle!

Rover Roy · 8th December 2006, 18:01

Recieved the Haynes manual tonight. A quick read through left me disapointed in the lack of explanitry detail on Engine management but page 4A-2 (1.8) does mention several sensors roles.

I think M47Rman has hit the nail on the head with the indecision of ECU mapping. I have already swapped the idle air valve ( with a used unit) without a fix which tends to suggest a sensor problem influencing the Part/full map. Ive checked engine response with rear window demist, and A/C and idle responds OK. As I see it that leaves the Power Steering sensor. Any ideas how to check it????

8th December 2006, 18:01	#11
Rover Roy Newbie Join Date: Dec 2006 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts	Recieved the Haynes manual tonight. A quick read through left me disapointed in the lack of explanitry detail on Engine management but page 4A-2 (1.8) does mention several sensors roles. I think M47Rman has hit the nail on the head with the indecision of ECU mapping. I have already swapped the idle air valve ( with a used unit) without a fix which tends to suggest a sensor problem influencing the Part/full map. Ive checked engine response with rear window demist, and A/C and idle responds OK. As I see it that leaves the Power Steering sensor. Any ideas how to check it????