ECU reset now car is 'boged' down whilst accelerating

1998 FORD FIESTA
103,000 MILES
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DANG90
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  • 1 POST
Ok so my indicator finally stopped working on my r reg (97-98) fiesta, i purchased a new switch assembly disconnected the battery whilst changing it and refitted the new one, the indicator now works. However we now arrive at the problem, whilst accelerating (in 1st i can accelerate up to 15mph then the car sort of judders and refuses to accelerate faster then the current speed of 15mph even when i put my footdown more,this occurs whilst in second at 25mph and third at 40mph). I no i shouldn't really be 'ragging' it but sometimes you need that bit of acceleration and it being a 1.25 it doesn't have that much to start with. The problem seemed to come when i disconnected the negative on the battery as before i did this it was fine. I know it would have reset the ecu as i had to reprogram my radio etc in just wondering how to get around this problem as when i hit the previously stated speeds the car literally feels like somebody has started braking and will decelerate. Thanks
Jun 15, 2012 at 10:31 PM
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RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Scan the computer for code/s and also check the exhaust system for restriction-start here
Jun 15, 2012 at 10:48 PM
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PMG1969
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I have the same problem on. '98 plate. 35000 miles. Indicator stalk played up, next the car juddereD at same speed. Found there's a hose just under top of inlet manifold, and was split, renewed that and car works fine now.
Aug 9, 2012 at 10:42 AM
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