sj408

iTrader: (6)

hey guys, so recently my car has been behaving strangely like losing acceleration with the pedal fully down, it just seems to be a huge vacuum problem or something.

so in the end i changed all my vacuum lines and the problem seemed to get worse, pretty much 0 acceleration but when it finally pulls through it the engine sounds way too loud for how slow im going. as well the car is throwing a code 71 for egr.


pretty much going to have to bring it in to a toyota specialist, more money but before i do anyone ever experience a problem like this? any opinions?

thanks in advance

JspecSC3

iTrader: (4)

Hey looks like you're in San Jose also. Ive thrown code 72 before. I never got around to fix the problem. It basically went away once I swapped it over from auto to manual.

I hope you find the following link to be a little helpful:
https://www.clublexus.com/forums/per...code-71-a.html

link13

Vacuum modulator.

sj408

iTrader: (6)

vacuum modulator? i hate to be skeptical but is that a real part on my car???

if so how much would it cost to replace this part

link13

If you're throwing code 71, you're OBD1. Code 71 (EGR Malfunction) is the most common error code on the 2JZ-GE. I don't know what car you've got. The vacuum modulator is a real part and is a very common cause of code 71 CELs. Good luck.

sj408

iTrader: (6)

aight thanks figured out what vacuum modulator is but if this went bad would it affect how my car drives? i didnt think so, my next bet is on a dirty maf or throttle position sensor

link13

In mine, when the CEL would flash on, it would suck power for a bit.

90fast714

i have a 94 gs300 , i am also throwing a 71 ck light.. i dont think my car runs bad at all, it just smells a little rich sometimes. I wanna get my ck light off.. should i remove the egr unit or clean it or what?> and what about this vacuum thing, what is it and can this be the problem and the egr is still good?