Sign in | Register | My account |

engine light on only under accel. and bad idle.

91rx7
5

Asked by 91rx7 Feb 04, 2012 at 08:21 PM about the 1991 Mazda RX-7 2 Dr STD Hatchback

Question type: Maintenance & Repair

Engine light turns on only under accel, or when i rev it when its not in gear (5spd). but when idle from normal idle it will rase and drop 400rpm. But when bad idle engine light not on. But when first started up engine idles just fine, also no engine light. Any ideas? I been searching and it sounds like bad TPS.

1 Answer

Lars Cats
1,095

It sounds like a bad TPS, you can check it with a DMM. If that's not it you might want to check the error codes (plenty of info in that on the net), also check for vacuum leaks and have a look at the BAC valve.

Your Answer

Related Questions

  • will crank over but will not start... 1989 mazda gtu rx7 9 answers

    ok i have a 1989 mazda rx7 gtu with a 13b rotary... i can not get it to start.. i can get it to crank over but i cant get it to start completely.. so i was just checking around and just jumped it to ...

    1989 Mazda RX-7

    -

    Maintenance & Repair

  • Oil Pressure? 6 answers

    Hey guys, I have a RX7 but am noticing a lot of twitchin on the oil pressure gauge, and in some scenarios the pressure drops to 0 when idling, it can go up to 6 or 7kg/cm2 when accelerating. I have no...

    Mazda RX-7

    -

    Maintenance & Repair

  • I PUT BAD GAS IN MY RX7 AND NOW IT WONT IDLE 2 answers

    1990 Mazda RX-7 STD Convertible

    -

    Maintenance & Repair

  • 85RX7 GSL-SE - Sat for 5 years 4 answers

    I have owned the vehicle since 1991 and after 2 kids and a move it has sat in my garage for the past 5 years. It ran great up until then with very little problems. Now I know that I am going to get ...

    1985 Mazda RX-7

    -

    Maintenance & Repair

  • engine warning light 5 answers

    hi, my engine warning light is on or flashing. also my engine sounds like its running on 3 cylinders and very rough and under powered, then all of a sudden it clears up and is normal again although ...

    2005 Mazda RX-8 6-Speed

    -

    Maintenance & Repair

Search Mazda RX-7 Questions

Mazda RX-7 Experts

#1 Lars Cats
Lars Cats
Reputation 130
#2 Chris Akens
Chris Akens
Reputation 50
#3 Richard Boettger
Richard Boettger
Reputation 40
View All