Hello there everyone, this will be my first post here not including my introduction post I recently picked up a 98 Hijet with the EF-GS engine. I bought it being told "the carb is getting wore out, the choke doesn't like to work". Pretty much if it's any colder than around 65 degrees outside, it's not going to start. I went thru and gave it a bare bones tune up which didn't help, I than replaced the carb with an eBay motorcycle unit. Took some tweaking but the truck has ran and drove with this new carb, but still no cold start luck. At this point I decided to check the timing belt. I found that my camshaft was one tooth retarded from the timing mark. I also found that my cam sensor was held on with hopes and dreams. The bolt hole tab was completely separated from the rest of the sensor, and the locating dowel pin snapped right off as soon as I touched the sensor. I've got the timing belt back on and all the marks lined up. I ordered a new twin cam s110p cam sensor but when it arrived, the plug is different. It's still a two wire sensor, and everything else about it seems compatible. Has anyone gone thru this before? Is it just as simple as replacing the connector on the wiring harness with one that'll fit my new sensor? I'd imagine the actual workings of the sensor is the same. Any help or insight would be greatly appreciated This part is kind of me just rambling... Whenever id go to start the truck cold it would actually sound like it was low on compression (timing being off makes sense here). I'd also smell gas so I'm thinking maybe the cam sensor would move slightly while cranking, effectively killing my spark and flood the engine? I didn't know what I was getting myself into buying a twin cammed truck admittedly, seems the single cams have more knowledge surrounding them. Beyond the timing belt and my cam sensor, is there anything else anyone can suggest me to check? I've ohmed out all of my coils. I don't know what the specs should be, but with the same readings on all 3 I'd assume they're good. It's ran with the new carb so I'm gonna say it's good. Really the only things left I could think it could be, is maybe something with the ECU (this throws me for a loop seeing as it's a carbed engine. Does the carb handle fueling and ECU handle the actual ignition itself?). Or possibly the engine is wore out, it does show 150k kilometers. It could very well be an electrical issue as well, though I'm not convinced. It seems like the engine side of the electrical is good to go, but all the accessories electrical is kind of trash. It's 50-50 on what accessories work on the truck. No map lights, no horn, no high beams, oil sensor light always on etc. I'd like to keep it going just until mid next year. I live in an apartment now and plan on moving into a house, there I can removed the bed and start actually going thru this thing
Have you worked anything out? I am trying to replace the cam sensor on my 1998 hijet EFGS as well, but i cant find it! Where did you find it?
I tell ya, you've got some impressive timing... I actually just moved out of my apartment and into a house with garage. Took me 2 days after the move to start showing the mini truck some love. Anyway, probably tomorrow I am going to go and try to find a pigtail that will plug into this newer version cam sensor and see how it does. Just a couple hours ago I finished up removing the bed of the truck so I can go thru everything and see if there was something I was missing. I will post back with results I'd purchased my sensor from mini truck garage on eBay. It's seeming like 1998s are one of those like half year models
too funny, same wavelength i guess, haha. I found this one on Amazon https://www.amazon.ca/dp/B091997XY4?psc=1&ref=ppx_yo2ov_dt_b_product_details not sure if the plug is the same as the one on the 98' i have.....as i cant find it on the engine.
Tomorrow I will go take a look and see if we cant figure something out. The only real difference I'm seeing is the plug which is a good sign, but I'm Worried because that sale is calling it a crank sensor and not a camshaft sensor. I don't remember seeing a crank sensor though but I wasn't looking for one. To get the the cam sensor you lift up the seat bottoms, and take the timing belt cover off. You'll see it once that's off, which wasn't a fun job imo
Daihatsu catalogue def calls it a Sensor assembly, cam position, so not sure what's up with labeling the new one as crank, but the part # is the same. oooh, bummer its under the cover....ah i have to check the timing belt anyways, hah. I'll have a look and let you know what my pigtail looks like. Thanks so much for the location info for the sensor!!
Replacing my carb on a 97 GS Can you tell me what carb unit you went with and what hoses you needed to use?
This is what I followed to do my carb swap. It ended up getting rid of a lot of the little electrical solenoids, as well as many of the vacuum hoses. Most of the hoses I didn't even really understand their purpose, but still yanked them out and it has ran since the carb situation I checked out my wiring this morning and I'm about 90% sure the sensor you posted is exactly what I need
I just pulled the trigger on a similar one. The one you posted said I needed a Canadian address for shipping, so I went with one off.ebay. I'll let you know how it goes
This was VERY helpful and I found a total kit online (ebay) with everything necessary to do the job. 2hrs later, I was on the road! Appreciate the direction!
https://www.ebay.com/itm/305198321123 Here you go Only thing not in the kit is a choke cable, and I needed different mounting bolts
Did your truck come stock with the mikuni carb? Mine did not but I'm not sure what kind of carb mines got, it doesn't match either pictured in the eBay ad
Mine did not come with the Mikuni, but it seemed worth the gamble as the 87b79 that came with it was not available.
Beautiful, my stock one has a metal tag on it that's exactly what you said, so now I know what mine came with stock. Good to know that if mine keeps giving me troubles even after the new cam sensor, I'll probably go this route
Those old carbs are pretty bad!I had to replace the crank sensor on mine too, and fuel pump,... This weekend project will be shocks and struts (going with coilovers) if I get the time
What were the symptoms you experienced with a bad crank sensor? No spark no fuel? This morning I was poking around and found one of the metal lines for the charcoal canister clogged up. Today I'll probably make sure all of the metal lines are cleared up. I'm still waiting for the cam sensor to come from China, so probably a couple more weeks. I've been going thru and sorting the wiring as well. Really all of it just needs to be replaced, but I don't even want to try and find a suitable harness for sale (doubt I'd find one, probably a pretty penny even if I did find one) If I still have problems when the new cam sensor gets installed, I'll probably just opt for the kit that you linked earlier
Considering that the sensors was broken and dangling, it was a pretty sure sign that it needed replacing Once replaced I checked spark, and fuel. I replaced the fuel pump with a new "universal" one recommended by G&R, and dropped the fuel tank for a good clean out. It was BAD! Once replaced, it still would not run. It would kick over and try, but not going to happen. I fabricated a spacer to divert carb coolant lines and used a replacement carb for the 83 model. It ran and idled, but I didn't like the high idle and slow response..... so eliminating all the variables (vac lines, electrical inputs, etc) was the next step Carb coolant lines are now gone, vacuum lines pretty much gone, and it runs well
I've got most of my vacuum lines and many of the electrical solenoids, valves etc. deleted from on top of the intake manifold and of course the carb. I've had it running this way so I know I didn't delete something crucial to it running. It's hard trouble shooting these things with the little info available, and no way for me to know if it's running good, low on power, etc.
