87 Throwing Error Code 32 & 45

Reply Subscribe

Thread Tools

Search this Thread

May 11, 2011 | 11:18 PM

bkinser

Thread Starter

Intermediate

Joined: Mar 2011

Posts: 33

Likes: 0

87 Throwing Error Code 32 & 45

My 1987 Vette is throwing error code 32 (EGR) & code 45 (Rich Exhaust). The car occassionally seems to have a faster idle when this happens - 800 rpm rather than 600 rpm. One day last week it threw a code 34 (MAF sensor) and stalled. Started up the car, and it was fine. Any ideas that would cause a combination like this? The MAF sensor, EGR valve, ECM, & O2 sensor have already been replaced.

May 11, 2011 | 11:40 PM

jfb

Team Owner

Joined: Mar 2001

Posts: 54,124

Likes: 30

From: Cincinnati, Oh USA

Leaky injector/s, see how long fuel pressure holds up after turnoff. Should be at least 1/2 hour. Check if air filter is clogged. Measure TPS output voltage to see if it is correct.

May 12, 2011 | 09:30 AM

bkinser

Thread Starter

Intermediate

Joined: Mar 2011

Posts: 33

Likes: 0

Quote:

Originally Posted by jfb

Leaky injector/s, see how long fuel pressure holds up after turnoff. Should be at least 1/2 hour. Check if air filter is clogged. Measure TPS output voltage to see if it is correct.

Thanks for the reply. The fuel pressure won't hold for 1 second after engine turnoff. The fuel pressure regulator diaphragm was already replaced. The fuel injectors were also replaced last August. What is the best way to test which injectors are leaking?

May 12, 2011 | 04:53 PM

floridamale

Safety Car

Joined: Jan 2008

Posts: 3,939

Likes: 1

From: Vero Beach Florida

Pinch off your return line top of gas tank see if the pressure holds. If it dose chances are you have a bad check valve in the pump

Reply Subscribe