when i unplug the fuel regulator, my 94 toyota corolla runs so much smoother. Is this telling me theres an issue?

60

Asked by Feb 26, 2013 at 02:12 PM about the 1994 Toyota Corolla

Question type: Maintenance & Repair

First of all my car cuts of after running for 20 or so minutes.  no signs or symptoms before she cuts off.  Ive replaced numerous parts. car still cuts off after getting to good running temperature.  I unplugged the fuel regulator and the car instantly ran smoother and guieter.  Only in park though. Is this telling me theres a problem with the fuel system and if so what?

3 Answers

99,925

By removing the vacuum source from the regulator, you increased the fuel pressure and unless you capped the vacuum line, you allowed additional air into the engine. It probably had a net result of a higher RPM which would appear to be smoother. --- As for your cutting off problem, try some starting fluid when it quits to see if it's a fuel or spark problem.

1 of 1 people found this helpful.
60

ok guys, i sprayed starter fluid and there was no start, you said if it didnt, there was no spark. what do i go to now

60

please help

Your Answer

Corolla

Looking for a Used Corolla in your area?

CarGurus has 66,537 nationwide Corolla listings starting at $1,900.

ZIP:

Toyota Corolla Experts

  • #1
    Tom Demyan
    Reputation
    2,450
  • #2
    tenspeed
    Reputation
    1,840
  • #3
    tennisshoes
    Reputation
    1,770
View All

Related Models For Sale

Used Toyota Camry
1,107 Great Deals out of 72,799 listings starting at $1,000
Used Honda Civic
850 Great Deals out of 78,667 listings starting at $900
Used Honda Accord
1,027 Great Deals out of 63,281 listings starting at $999
Used Nissan Altima
1,140 Great Deals out of 75,113 listings starting at $999
Used Nissan Sentra
549 Great Deals out of 50,729 listings starting at $2,000
Used Hyundai Elantra
546 Great Deals out of 42,270 listings starting at $795
Used Toyota Tacoma
561 Great Deals out of 42,349 listings starting at $2,999
Used Hyundai Sonata
755 Great Deals out of 47,839 listings starting at $199

Used Cars For Sale

2018 Toyota Corolla For Sale
162 listings starting at $18,850
2017 Toyota Corolla For Sale
36 Great Deals out of 39,932 listings starting at $9,950
2016 Toyota Corolla For Sale
131 Great Deals out of 5,914 listings starting at $9,391
2015 Toyota Corolla For Sale
148 Great Deals out of 4,984 listings starting at $7,700
2014 Toyota Corolla For Sale
283 Great Deals out of 5,437 listings starting at $6,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.