3rd & 4th Generation (1992–1996 & 1997–2001)Toyota Camry Discussion for years: 1992-1996 & 1997-2001
Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.
I believe my F/P went in my '92 2.2 170k...
I have no prime noise when I turn on the key, AC2 fuse is good, & I have spark...my question is (I'm from the old school, carbs), can I spray starting fluid into the throttle body to get it to burp to prove it's the pump? I don't think so..but I'll ask anyway...
I believe my F/P went in my '92 2.2 170k...
I have no prime noise when I turn on the key, AC2 fuse is good, & I have spark...my question is (I'm from the old school, carbs), can I spray starting fluid into the throttle body to get it to burp to prove it's the pump? I don't think so..but I'll ask anyway...
No reason why not, although it might be better to pop off the PCV hose from the intake manifold and do the squirt there. If she tries to start, that just means you're getting spark -- doesn't tell which part of the fuel system is duff.
It's also real easy to access the FP itself -- just pop out the rear seat (just pull up along the front of the seat -- just a couple of clips holding it in -- no bolts, then unscrew the four screws on the access panel to get to the FP. Detect the connector from the pump and jumper 12V across the leads -- that's a good go/no go on pump operation.
There's also a test point on DLC1 (the test connector on passenger side near the firewall inside the engine compartment) where you can jumper (using a paper clip) between FP and B+ to turn on the fuel pump -- that tests the fuel pump and the wiring going back to it.
The manual at www.camrystuff.com , Generation 3, 5S-FE engine section, starting at page 164 has lot of good info and troubleshooting instructions for the fuel system.
How's the relay. When you jumper the pins in the DLC, does the pump operate.
Quote:
Originally Posted by mvftw
I believe my F/P went in my '92 2.2 170k...
I have no prime noise when I turn on the key, AC2 fuse is good, & I have spark...my question is (I'm from the old school, carbs), can I spray starting fluid into the throttle body to get it to burp to prove it's the pump? I don't think so..but I'll ask anyway...
John, I meant to say, now what, is it the opening circuit or EFI relay...or something else...
If the pump runs with the DLC jumpered, then the EFI relay is OK. Best guess is the Circuit Opening Relay. Same ref I gave before, starting at page 217 shows R&R and testing of the relay. Have to pop the glove box out to get to it, but that's pretty trivial.
Well I just checked the Open Circuit Relay and it tested good...if that tests good I should hear the fuel pump prime I would figure...I do hear it when I jump out +B & FP, but not with the key on...you said that the EFI Relay would be good if the FP turned ON from jumping out +B & FP right...
Looking at page 419 (EG1), couldn't a bad coil (NE Signal) cause the FP NOT to turn ON???
Check two of the terminals that turns on the circuit opening relay. You should see battery voltage there (one is +12 and the other is ground) when ignition is on. I would think that if you jumper the fuel pump terminals then at the relay socket the pump should come on. If so then you need to check the duty cycle line.
There is another terminal from the ECU for duty cycling the fuel pump. It's not clear how the wiring to the ECU works (e.g., to ground possibly).
In general, be careful using an ohmmeter on the ECU, most newer meters run on 9V and is too high for the ECU. So I probably won't probe anything other 12V circuits to/from the ECU.
Quote:
Originally Posted by mvftw
Well I just checked the Open Circuit Relay and it tested good...if that tests good I should hear the fuel pump prime I would figure...I do hear it when I jump out +B & FP, but not with the key on...you said that the EFI Relay would be good if the FP turned ON from jumping out +B & FP right...
Looking at page 419 (EG1), couldn't a bad coil (NE Signal) cause the FP NOT to turn ON???
sorry to bring back the dead, but if you jump across fp and +b and still no start( didnt really check if fuel pump is whining yet) and nothing happens.
I'm experiencing an issue where the car turns over, but just doesn't start. the fuel still looks good as well.
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Fuel Pump???
Linear Mode
